refactor: split IPCRenderer implementation

* perf: cache whether or not ELECTRON_DEBUG_NOTIFICATIONS env var is set

* chore: remove unused #include

.gitattributes

@@ -1,6 +1,9 @@
 # `git apply` and friends don't understand CRLF, even on windows. Force those
 # files to be checked out with LF endings even if core.autocrlf is true.
 *.patch text eol=lf
+DEPS text eol=lf
+yarn.lock text eol=lf
+script/zip_manifests/*.manifest text eol=lf
 patches/**/.patches merge=union
 
 # Source code and markdown files should always use LF as line ending.

.github/actions/build-electron/action.yml

@@ -5,10 +5,10 @@ inputs:
     description: 'Target arch'
     required: true
   target-platform:
-    description: 'Target platform'
+    description: 'Target platform, should be linux, win, macos'
     required: true
   artifact-platform:
-    description: 'Artifact platform, should be linux, darwin or mas'
+    description: 'Artifact platform, should be linux, win, darwin or mas'
     required: true
   step-suffix:
     description: 'Suffix for build steps'
@@ -69,9 +69,9 @@ runs:
       shell: bash
       run: |
         cd src
-        e build --target electron:electron_dist_zip -j $NUMBER_OF_NINJA_PROCESSES
+        e build --target electron:electron_dist_zip -j $NUMBER_OF_NINJA_PROCESSES -d explain
         if [ "${{ inputs.is-asan }}" != "true" ]; then
-          target_os=${{ inputs.target-platform == 'linux' && 'linux' || 'mac'}}
+          target_os=${{ inputs.target-platform == 'macos' && 'mac' || inputs.target-platform }}
           if [ "${{ inputs.artifact-platform }}" = "mas" ]; then
             target_os="${target_os}_mas"
           fi
@@ -82,7 +82,7 @@ runs:
       run: |
         cd src
         e build --target electron:electron_mksnapshot -j $NUMBER_OF_NINJA_PROCESSES
-        gn desc out/Default v8:run_mksnapshot_default args > out/Default/mksnapshot_args
+        ELECTRON_DEPOT_TOOLS_DISABLE_LOG=1 e d gn desc out/Default v8:run_mksnapshot_default args > out/Default/mksnapshot_args
         # Remove unused args from mksnapshot_args
         SEDOPTION="-i"
         if [ "`uname`" = "Darwin" ]; then
@@ -91,7 +91,7 @@ runs:
         sed $SEDOPTION '/.*builtins-pgo/d' out/Default/mksnapshot_args
         sed $SEDOPTION '/--turbo-profiling-input/d' out/Default/mksnapshot_args
 
-        if [ "`uname`" = "Linux" ]; then
+        if [ "${{ inputs.target-platform }}" = "linux" ]; then
           if [ "${{ inputs.target-arch }}" = "arm" ]; then
             electron/script/strip-binaries.py --file $PWD/out/Default/clang_x86_v8_arm/mksnapshot
             electron/script/strip-binaries.py --file $PWD/out/Default/clang_x86_v8_arm/v8_context_snapshot_generator
@@ -105,7 +105,13 @@ runs:
         fi
 
         e build --target electron:electron_mksnapshot_zip -j $NUMBER_OF_NINJA_PROCESSES
-        (cd out/Default; zip mksnapshot.zip mksnapshot_args gen/v8/embedded.S)
+        if [ "${{ inputs.target-platform }}" = "win" ]; then
+          cd out/Default
+          powershell Compress-Archive -update mksnapshot_args mksnapshot.zip
+          powershell Compress-Archive -update gen/v8/embedded.S mksnapshot.zip
+        else
+          (cd out/Default; zip mksnapshot.zip mksnapshot_args gen/v8/embedded.S)
+        fi
     - name: Generate Cross-Arch Snapshot (arm/arm64)  ${{ inputs.step-suffix }}
       shell: bash
       if: ${{ (inputs.target-arch == 'arm' || inputs.target-arch == 'arm64') && inputs.target-platform == 'linux' }}

.github/actions/checkout/action.yml

@@ -5,6 +5,10 @@ inputs:
     description: 'Whether to generate and persist a SAS token for the item in the cache'
     required: false
     default: 'false'
+  use-cache:
+    description: 'Whether to persist the cache to the shared drive'
+    required: false
+    default: 'true'
 runs:
   using: "composite"
   steps:
@@ -13,31 +17,27 @@ runs:
     run: |
       echo "GIT_CACHE_PATH=$(pwd)/git-cache" >> $GITHUB_ENV
   - name: Install Dependencies
-    shell: bash
-    run: |
-      cd src/electron
-      node script/yarn install --frozen-lockfile
+    uses: ./src/electron/.github/actions/install-dependencies
+  - name: Install Build Tools
+    uses: ./src/electron/.github/actions/install-build-tools
   - name: Get Depot Tools
     shell: bash
     run: |
-      git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
+      if [[ ! -d depot_tools ]]; then
+        git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
 
-      sed -i '/ninjalog_uploader_wrapper.py/d' ./depot_tools/autoninja
-      # Remove swift-format dep from cipd on macOS until we send a patch upstream.
-      cd depot_tools
-      git apply --3way ../src/electron/.github/workflows/config/gclient.diff
-
-      # Ensure depot_tools does not update.
-      test -d depot_tools && cd depot_tools
-      touch .disable_auto_update
+        # Ensure depot_tools does not update.
+        test -d depot_tools && cd depot_tools
+        touch .disable_auto_update
+      fi
   - name: Add Depot Tools to PATH
     shell: bash
     run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH
   - name: Generate DEPS Hash
     shell: bash
     run: |
-      node src/electron/script/generate-deps-hash.js && cat src/electron/.depshash-target
-      echo "DEPSHASH=v1-src-cache-$(shasum src/electron/.depshash | cut -f1 -d' ')" >> $GITHUB_ENV
+      node src/electron/script/generate-deps-hash.js
+      echo "DEPSHASH=v1-src-cache-$(cat src/electron/.depshash)" >> $GITHUB_ENV
   - name: Generate SAS Key
     if: ${{ inputs.generate-sas-token == 'true' }}
     shell: bash
@@ -54,18 +54,23 @@ runs:
     id: check-cache
     shell: bash
     run: |
-      cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar
-      echo "Using cache key: $DEPSHASH"
-      echo "Checking for cache in: $cache_path"
-      if [ ! -f "$cache_path" ] || [ `du $cache_path | cut -f1` = "0" ]; then
+      if [[ "${{ inputs.use-cache }}" == "false" ]]; then
+        echo "Not using cache this time..."
         echo "cache_exists=false" >> $GITHUB_OUTPUT
-        echo "Cache Does Not Exist for $DEPSHASH"
       else
-        echo "cache_exists=true" >> $GITHUB_OUTPUT
-        echo "Cache Already Exists for $DEPSHASH, Skipping.."
+        cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar
+        echo "Using cache key: $DEPSHASH"
+        echo "Checking for cache in: $cache_path"
+        if [ ! -f "$cache_path" ] || [ `du $cache_path | cut -f1` = "0" ]; then
+          echo "cache_exists=false" >> $GITHUB_OUTPUT
+          echo "Cache Does Not Exist for $DEPSHASH"
+        else
+          echo "cache_exists=true" >> $GITHUB_OUTPUT
+          echo "Cache Already Exists for $DEPSHASH, Skipping.."
+        fi
       fi
   - name: Check cross instance cache disk space
-    if: steps.check-cache.outputs.cache_exists == 'false'
+    if: steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache  == 'true'
     shell: bash
     run: |    
       # if there is less than 20 GB free space then creating the cache might fail so exit early
@@ -81,13 +86,17 @@ runs:
     if: steps.check-cache.outputs.cache_exists == 'false'
     shell: bash
     run: |
-      gclient config \
+      e d gclient config \
         --name "src/electron" \
         --unmanaged \
         ${GCLIENT_EXTRA_ARGS} \
         "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY"
 
-      ELECTRON_USE_THREE_WAY_MERGE_FOR_PATCHES=1 gclient sync --with_branch_heads --with_tags -vvvvv
+      if [ "$TARGET_OS" != "" ]; then
+        echo "target_os=['$TARGET_OS']" >> ./.gclient
+      fi
+
+      ELECTRON_USE_THREE_WAY_MERGE_FOR_PATCHES=1 e d gclient sync --with_branch_heads --with_tags -vv
       if [ "${{ inputs.is-release }}" != "true" && -n "${{ env.PATCH_UP_APP_CREDS }}" ]; then
         # Re-export all the patches to check if there were changes.
         python3 src/electron/script/export_all_patches.py src/electron/patches/config.json
@@ -128,13 +137,13 @@ runs:
   # https://dawn-review.googlesource.com/c/dawn/+/83901
   # TODO: maybe better to always leave out */.git/HEAD file for all targets ?
   - name: Delete .git directories under src to free space
-    if: steps.check-cache.outputs.cache_exists == 'false'
+    if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
     shell: bash
     run: |
       cd src
       ( find . -type d -name ".git" -not -path "./third_party/angle/*" -not -path "./third_party/dawn/*" -not -path "./electron/*" ) | xargs rm -rf
   - name: Minimize Cache Size for Upload
-    if: steps.check-cache.outputs.cache_exists == 'false'
+    if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
     shell: bash
     run: |
       rm -rf src/android_webview
@@ -145,9 +154,12 @@ runs:
       rm -rf src/third_party/angle/third_party/VK-GL-CTS/src
       rm -rf src/third_party/swift-toolchain
       rm -rf src/third_party/swiftshader/tests/regres/testlists
+      cp src/electron/.github/actions/checkout/action.yml ./
       rm -rf src/electron
+      mkdir -p src/electron/.github/actions/checkout
+      mv action.yml src/electron/.github/actions/checkout
   - name: Compress Src Directory
-    if: steps.check-cache.outputs.cache_exists == 'false'
+    if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
     shell: bash
     run: |
       echo "Uncompressed src size: $(du -sh src | cut -f1 -d' ')"
@@ -155,7 +167,7 @@ runs:
       echo "Compressed src to $(du -sh $DEPSHASH.tar | cut -f1 -d' ')"
       cp ./$DEPSHASH.tar /mnt/cross-instance-cache/
   - name: Persist Src Cache
-    if: steps.check-cache.outputs.cache_exists == 'false'
+    if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
     shell: bash
     run: |
       final_cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar

.github/actions/install-build-tools/action.yml

@@ -6,6 +6,15 @@ runs:
   - name: Install Build Tools
     shell: bash
     run: |
-      export BUILD_TOOLS_SHA=eeb1a11392e4cec08fd926c93b31ab556dc0c23b
+      if [ "$(expr substr $(uname -s) 1 10)" == "MSYS_NT-10" ]; then
+        git config --global core.filemode false
+        git config --global core.autocrlf false
+        git config --global branch.autosetuprebase always
+      fi
+      export BUILD_TOOLS_SHA=8246e57791b0af4ae5975eb96f09855f9269b1cd
       npm i -g @electron/build-tools
       e auto-update disable
+      if [ "$(expr substr $(uname -s) 1 10)" == "MSYS_NT-10" ]; then
+        e d cipd.bat --version
+        cp "C:\Python37\python.exe" "C:\Python37\python3.exe"
+      fi

.github/actions/install-dependencies/action.yml

@@ -0,0 +1,21 @@
+name: 'Install Dependencies'
+description: 'Installs yarn depdencies using cache when available'
+runs:
+  using: "composite"
+  steps:
+  - name: Get yarn cache directory path
+    shell: bash
+    id: yarn-cache-dir-path
+    run: echo "dir=$(node src/electron/script/yarn cache dir)" >> $GITHUB_OUTPUT
+  - uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9
+    id: yarn-cache
+    with:
+      path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+      key: ${{ runner.os }}-yarn-${{ hashFiles('src/electron/yarn.lock') }}
+      restore-keys: |
+        ${{ runner.os }}-yarn-
+  - name: Install Dependencies
+    shell: bash
+    run: |
+      cd src/electron
+      node script/yarn install --frozen-lockfile --prefer-offline

.github/workflows/archaeologist-dig.yml

@@ -41,7 +41,7 @@ jobs:
           sha-file: .dig-old
           filename: electron.old.d.ts
       - name: Upload artifacts
-        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 #v4.4.3
+        uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b #v4.5.0
         with:
           name: artifacts
           path: electron/artifacts

.github/workflows/branch-created.yml

@@ -94,7 +94,7 @@ jobs:
             }))
       - name: Create Release Project Board
         if: ${{ steps.check-major-version.outputs.MAJOR }}
-        uses: dsanders11/project-actions/copy-project@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/copy-project@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         id: create-release-board
         with:
           drafts: true
@@ -114,14 +114,14 @@ jobs:
           GITHUB_TOKEN: ${{ steps.generate-token.outputs.token }}
       - name: Find Previous Release Project Board
         if: ${{ steps.check-major-version.outputs.MAJOR }}
-        uses: dsanders11/project-actions/find-project@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/find-project@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         id: find-prev-release-board
         with:
           title: ${{ steps.generate-project-metadata.outputs.prev-prev-major }}-x-y
           token: ${{ steps.generate-token.outputs.token }}
       - name: Close Previous Release Project Board
         if: ${{ steps.check-major-version.outputs.MAJOR }}
-        uses: dsanders11/project-actions/close-project@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/close-project@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         with:
           project-number: ${{ steps.find-prev-release-board.outputs.number }}
           token: ${{ steps.generate-token.outputs.token }}

.github/workflows/build.yml

@@ -18,6 +18,11 @@ on:
         description: 'Skip Linux builds'
         default: false
         required: false
+      skip-windows:
+        type: boolean
+        description: 'Skip Windows builds'
+        default: false
+        required: false
       skip-lint:
         type: boolean
         description: 'Skip lint check'
@@ -28,7 +33,11 @@ on:
       - main
       - '[1-9][0-9]-x-y'
   pull_request:
-      
+
+defaults:
+  run:
+    shell: bash
+
 jobs:
   setup:
     runs-on: ubuntu-latest
@@ -41,6 +50,8 @@ jobs:
         docs-only: ${{ steps.set-output.outputs.docs-only }}
     steps:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 #v4.0.2
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
     - uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
       id: filter
       with:
@@ -98,6 +109,7 @@ jobs:
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Checkout & Sync & Save
       uses: ./src/electron/.github/actions/checkout
       with:
@@ -124,9 +136,68 @@ jobs:
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Checkout & Sync & Save
       uses: ./src/electron/.github/actions/checkout
 
+  checkout-windows:
+    needs: setup
+    if: ${{ needs.setup.outputs.src == 'true' && !inputs.skip-windows }}
+    runs-on: electron-arc-linux-amd64-32core
+    container:
+      image: ghcr.io/electron/build:${{ needs.setup.outputs.build-image-sha }}
+      options: --user root --device /dev/fuse --cap-add SYS_ADMIN
+      volumes:
+        - /mnt/cross-instance-cache:/mnt/cross-instance-cache
+    env:
+      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_win=True'
+      TARGET_OS: 'win'
+      ELECTRON_DEPOT_TOOLS_WIN_TOOLCHAIN: '1'
+    outputs:
+      build-image-sha: ${{ needs.setup.outputs.build-image-sha}}
+    steps:
+    - name: Checkout Electron
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      with:
+        path: src/electron
+        fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
+    - name: Checkout & Sync & Save
+      uses: ./src/electron/.github/actions/checkout
+
+  # GN Check Jobs
+  macos-gn-check:
+    uses: ./.github/workflows/pipeline-segment-electron-gn-check.yml
+    needs: checkout-macos
+    with:
+      target-platform: macos
+      target-archs: x64 arm64
+      check-runs-on: macos-14
+      gn-build-type: testing
+    secrets: inherit
+
+  linux-gn-check:
+    uses: ./.github/workflows/pipeline-segment-electron-gn-check.yml
+    needs: checkout-linux
+    with:
+      target-platform: linux
+      target-archs: x64 arm arm64
+      check-runs-on: electron-arc-linux-amd64-8core
+      check-container: '{"image":"ghcr.io/electron/build:${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root","volumes":["/mnt/cross-instance-cache:/mnt/cross-instance-cache"]}'
+      gn-build-type: testing
+    secrets: inherit
+
+  windows-gn-check:
+    uses: ./.github/workflows/pipeline-segment-electron-gn-check.yml
+    needs: checkout-windows
+    with:
+      target-platform: win
+      target-archs: x64 x86 arm64
+      check-runs-on: electron-arc-linux-amd64-8core
+      check-container: '{"image":"ghcr.io/electron/build:${{ needs.checkout-windows.outputs.build-image-sha }}","options":"--user root --device /dev/fuse --cap-add SYS_ADMIN","volumes":["/mnt/cross-instance-cache:/mnt/cross-instance-cache"]}'
+      gn-build-type: testing
+    secrets: inherit
+
   # Build Jobs - These cascade into testing jobs
   macos-x64:
     permissions:
@@ -137,7 +208,6 @@ jobs:
     needs: checkout-macos
     with:
       build-runs-on: macos-14-xlarge
-      check-runs-on: macos-14
       test-runs-on: macos-13
       target-platform: macos
       target-arch: x64
@@ -156,7 +226,6 @@ jobs:
     needs: checkout-macos
     with:
       build-runs-on: macos-14-xlarge
-      check-runs-on: macos-14
       test-runs-on: macos-14
       target-platform: macos
       target-arch: arm64
@@ -175,7 +244,6 @@ jobs:
     needs: checkout-linux
     with:
       build-runs-on: electron-arc-linux-amd64-32core
-      check-runs-on: electron-arc-linux-amd64-8core
       test-runs-on: electron-arc-linux-amd64-4core
       build-container: '{"image":"ghcr.io/electron/build:${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root","volumes":["/mnt/cross-instance-cache:/mnt/cross-instance-cache"]}'
       test-container: '{"image":"ghcr.io/electron/build:${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root --privileged --init"}'
@@ -196,7 +264,6 @@ jobs:
     needs: checkout-linux
     with:
       build-runs-on: electron-arc-linux-amd64-32core
-      check-runs-on: electron-arc-linux-amd64-8core
       test-runs-on: electron-arc-linux-amd64-4core
       build-container: '{"image":"ghcr.io/electron/build:${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root","volumes":["/mnt/cross-instance-cache:/mnt/cross-instance-cache"]}'
       test-container: '{"image":"ghcr.io/electron/build:${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root --privileged --init"}'
@@ -218,7 +285,6 @@ jobs:
     needs: checkout-linux
     with:
       build-runs-on: electron-arc-linux-amd64-32core
-      check-runs-on: electron-arc-linux-amd64-8core
       test-runs-on: electron-arc-linux-arm64-4core
       build-container: '{"image":"ghcr.io/electron/build:${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root","volumes":["/mnt/cross-instance-cache:/mnt/cross-instance-cache"]}'
       test-container: '{"image":"ghcr.io/electron/test:arm32v7-${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root --privileged --init","volumes":["/home/runner/externals:/mnt/runner-externals"]}'
@@ -239,7 +305,6 @@ jobs:
     needs: checkout-linux
     with:
       build-runs-on: electron-arc-linux-amd64-32core
-      check-runs-on: electron-arc-linux-amd64-8core
       test-runs-on: electron-arc-linux-arm64-4core
       build-container: '{"image":"ghcr.io/electron/build:${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root","volumes":["/mnt/cross-instance-cache:/mnt/cross-instance-cache"]}'
       test-container: '{"image":"ghcr.io/electron/test:arm64v8-${{ needs.checkout-linux.outputs.build-image-sha }}","options":"--user root --privileged --init"}'
@@ -250,3 +315,70 @@ jobs:
       generate-symbols: false
       upload-to-storage: '0'
     secrets: inherit
+
+  windows-x64:
+    permissions:
+      contents: read
+      issues: read
+      pull-requests: read
+    uses: ./.github/workflows/pipeline-electron-build-and-test.yml
+    needs: setup
+    if: ${{ needs.setup.outputs.src == 'true' && !inputs.skip-windows }}
+    with:
+      build-runs-on: electron-arc-windows-amd64-16core
+      test-runs-on: windows-latest
+      target-platform: win
+      target-arch: x64
+      is-release: false
+      gn-build-type: testing
+      generate-symbols: false
+      upload-to-storage: '0'
+    secrets: inherit
+
+  windows-x86:
+    permissions:
+      contents: read
+      issues: read
+      pull-requests: read
+    uses: ./.github/workflows/pipeline-electron-build-and-test.yml
+    needs: setup
+    if: ${{ needs.setup.outputs.src == 'true' && !inputs.skip-windows }}
+    with:
+      build-runs-on: electron-arc-windows-amd64-16core
+      test-runs-on: windows-latest
+      target-platform: win
+      target-arch: x86
+      is-release: false
+      gn-build-type: testing
+      generate-symbols: false
+      upload-to-storage: '0'
+    secrets: inherit
+
+  windows-arm64:
+    permissions:
+      contents: read
+      issues: read
+      pull-requests: read
+    uses: ./.github/workflows/pipeline-electron-build-and-test.yml
+    needs: setup
+    if: ${{ needs.setup.outputs.src == 'true' && !inputs.skip-windows }}
+    with:
+      build-runs-on: electron-arc-windows-amd64-16core
+      test-runs-on: electron-hosted-windows-arm64-4core
+      target-platform: win
+      target-arch: arm64
+      is-release: false
+      gn-build-type: testing
+      generate-symbols: false
+      upload-to-storage: '0'
+    secrets: inherit
+
+  gha-done:
+    name: GitHub Actions Completed
+    runs-on: ubuntu-latest
+    needs: [docs-only, macos-x64, macos-arm64, linux-x64, linux-x64-asan, linux-arm, linux-arm64, windows-x64, windows-x86, windows-arm64]
+    if: always() && !contains(needs.*.result, 'failure')
+    steps: 
+    - name: GitHub Actions Jobs Done
+      run: |
+        echo "All GitHub Actions Jobs are done"

.github/workflows/config/gclient.diff

@@ -1,14 +0,0 @@
-diff --git a/gclient.py b/gclient.py
-index 59e2b4c5197928bdba1ef69bdbe637d7dfe471c1..b4bae5e48c83c84bd867187afaf40eed16e69851 100755
---- a/gclient.py
-+++ b/gclient.py
-@@ -783,7 +783,8 @@ class Dependency(gclient_utils.WorkItem, DependencySettings):
-                         not condition or "non_git_source" not in condition):
-                     continue
-                 cipd_root = self.GetCipdRoot()
--                for package in dep_value.get('packages', []):
-+                packages = dep_value.get('packages', [])
-+                for package in (x for x in packages if "infra/3pp/tools/swift-format" not in x.get('package')):
-                     deps_to_add.append(
-                         CipdDependency(parent=self,
-                                        name=name,

.github/workflows/issue-labeled.yml

@@ -20,7 +20,7 @@ jobs:
           creds: ${{ secrets.ISSUE_TRIAGE_GH_APP_CREDS }}
           org: electron
       - name: Set status
-        uses: dsanders11/project-actions/edit-item@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/edit-item@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         with:
           token: ${{ steps.generate-token.outputs.token }}
           project-number: 90
@@ -38,7 +38,7 @@ jobs:
           creds: ${{ secrets.ISSUE_TRIAGE_GH_APP_CREDS }}
           org: electron
       - name: Set status
-        uses: dsanders11/project-actions/edit-item@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/edit-item@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         with:
           token: ${{ steps.generate-token.outputs.token }}
           project-number: 90

.github/workflows/issue-opened.yml

@@ -19,7 +19,7 @@ jobs:
           creds: ${{ secrets.ISSUE_TRIAGE_GH_APP_CREDS }}
           org: electron
       - name: Add to Issue Triage
-        uses: dsanders11/project-actions/add-item@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/add-item@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         with:
           field: Reporter
           field-value: ${{ github.event.issue.user.login }}
@@ -57,34 +57,40 @@ jobs:
 
             const electronVersion = select('heading:has(> text[value="Electron Version"]) + paragraph > text', tree)?.value.trim();
             if (electronVersion !== undefined) {
-              const major = semver.parse(electronVersion)?.major;
-              if (major) {
-                const versionLabel = `${major}-x-y`;
-                let labelExists = false;
+              // It's possible for multiple versions to be listed -
+              // for now check for comma or space separated version.
+              const versions = electronVersion.split(/, | /);
+              for (const version of versions) {
+                const major = semver.coerce(version, { loose: true })?.major;
+                if (major) {
+                  const versionLabel = `${major}-x-y`;
+                  let labelExists = false;
 
-                try {
-                  await github.rest.issues.getLabel({
-                    owner,
-                    repo,
-                    name: versionLabel,
-                  });
-                  labelExists = true;
-                } catch {}
+                  try {
+                    await github.rest.issues.getLabel({
+                      owner,
+                      repo,
+                      name: versionLabel,
+                    });
+                    labelExists = true;
+                  } catch {}
 
-                if (labelExists) {
-                  // Check if it's an unsupported major
-                  const { ElectronVersions } = await import('${{ github.workspace }}/node_modules/@electron/fiddle-core/dist/index.js');
-                  const versions = await ElectronVersions.create(undefined, { ignoreCache: true });
+                  if (labelExists) {
+                    // Check if it's an unsupported major
+                    const { ElectronVersions } = await import('${{ github.workspace }}/node_modules/@electron/fiddle-core/dist/index.js');
+                    const versions = await ElectronVersions.create(undefined, { ignoreCache: true });
 
-                  const validVersions = [...versions.supportedMajors, ...versions.prereleaseMajors];
-                  if (!validVersions.includes(major)) {
-                    core.setOutput('unsupportedMajor', true);
-                    labels.push('blocked/need-info ❌');
+                    const validVersions = [...versions.supportedMajors, ...versions.prereleaseMajors];
+                    if (validVersions.includes(major)) {
+                      labels.push(versionLabel);
+                    }
                   }
-
-                  labels.push(versionLabel);
                 }
               }
+              if (labels.length === 0) {
+                core.setOutput('unsupportedMajor', true);
+                labels.push('blocked/need-info ❌');
+              }
             }
 
             const operatingSystems = select('heading:has(> text[value="What operating system(s) are you using?"]) + paragraph > text', tree)?.value.trim().split(', ');

.github/workflows/issue-transferred.yml

@@ -0,0 +1,24 @@
+name: Issue Transferred
+
+on:
+  issues:
+    types: [transferred]
+
+permissions: {}
+
+jobs:
+  issue-transferred:
+    name: Issue Transferred
+    runs-on: ubuntu-latest
+    steps:
+      - name: Generate GitHub App token
+        uses: electron/github-app-auth-action@384fd19694fe7b6dcc9a684746c6976ad78228ae # v1.1.1
+        id: generate-token
+        with:
+          creds: ${{ secrets.ISSUE_TRIAGE_GH_APP_CREDS }}
+          org: electron
+      - name: Remove from issue triage
+        uses: dsanders11/project-actions/delete-item@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
+        with:
+          token: ${{ steps.generate-token.outputs.token }}
+          project-number: 90

.github/workflows/issue-unlabeled.yml

@@ -30,7 +30,7 @@ jobs:
           org: electron
       - name: Set status
         if: ${{ steps.check-for-blocked-labels.outputs.NOT_BLOCKED }}
-        uses: dsanders11/project-actions/edit-item@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/edit-item@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         with:
           token: ${{ steps.generate-token.outputs.token }}
           project-number: 90

.github/workflows/pipeline-electron-build-and-test-and-nan.yml

@@ -5,7 +5,7 @@ on:
     inputs:
       target-platform:
         type: string
-        description: 'Platform to run on, can be macos or linux'
+        description: 'Platform to run on, can be macos, win or linux.'
         required: true
       target-arch:
         type: string
@@ -15,10 +15,6 @@ on:
         type: string
         description: 'What host to run the build'
         required: true
-      check-runs-on:
-        type: string
-        description: 'What host to run the gn-check'
-        required: true
       test-runs-on:
         type: string
         description: 'What host to run the tests on'
@@ -76,16 +72,6 @@ jobs:
       generate-symbols: ${{ inputs.generate-symbols }}
       upload-to-storage: ${{ inputs.upload-to-storage }}
     secrets: inherit
-  gn-check:
-    uses: ./.github/workflows/pipeline-segment-electron-gn-check.yml
-    with:
-      target-platform: ${{ inputs.target-platform }}
-      target-arch: ${{ inputs.target-arch }}
-      check-runs-on: ${{ inputs.check-runs-on }}
-      check-container: ${{ inputs.build-container }}
-      gn-build-type: ${{ inputs.gn-build-type }}
-      is-asan: ${{ inputs.is-asan }}
-    secrets: inherit
   test:
     uses: ./.github/workflows/pipeline-segment-electron-test.yml
     needs: build

.github/workflows/pipeline-electron-build-and-test.yml

@@ -5,7 +5,7 @@ on:
     inputs:
       target-platform:
         type: string
-        description: 'Platform to run on, can be macos or linux'
+        description: 'Platform to run on, can be macos, win or linux'
         required: true
       target-arch:
         type: string
@@ -15,10 +15,6 @@ on:
         type: string
         description: 'What host to run the build'
         required: true
-      check-runs-on:
-        type: string
-        description: 'What host to run the gn-check'
-        required: true
       test-runs-on:
         type: string
         description: 'What host to run the tests on'
@@ -82,16 +78,6 @@ jobs:
       upload-to-storage: ${{ inputs.upload-to-storage }}
       is-asan: ${{ inputs.is-asan}}
     secrets: inherit
-  gn-check:
-    uses: ./.github/workflows/pipeline-segment-electron-gn-check.yml
-    with:
-      target-platform: ${{ inputs.target-platform }}
-      target-arch: ${{ inputs.target-arch }}
-      check-runs-on: ${{ inputs.check-runs-on }}
-      check-container: ${{ inputs.build-container }}
-      gn-build-type: ${{ inputs.gn-build-type }}
-      is-asan: ${{ inputs.is-asan }}
-    secrets: inherit
   test:
     uses: ./.github/workflows/pipeline-segment-electron-test.yml
     needs: build

.github/workflows/pipeline-electron-docs-only.yml

@@ -24,10 +24,9 @@ jobs:
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Dependencies
-      run: |
-        cd src/electron
-        node script/yarn install --frozen-lockfile
+      uses: ./src/electron/.github/actions/install-dependencies
     - name: Run TS/JS compile
       shell: bash
       run: |

.github/workflows/pipeline-electron-lint.yml

@@ -24,10 +24,9 @@ jobs:
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Dependencies
-      run: |
-        cd src/electron
-        node script/yarn install --frozen-lockfile
+      uses: ./src/electron/.github/actions/install-dependencies
     - name: Setup third_party Depot Tools
       shell: bash
       run: |

.github/workflows/pipeline-segment-electron-build.yml

@@ -9,7 +9,7 @@ on:
         type: string
       target-platform:
         type: string
-        description: 'Platform to run on, can be macos or linux'
+        description: 'Platform to run on, can be macos, win or linux'
         required: true
       target-arch:
         type: string
@@ -69,11 +69,14 @@ env:
   ELECTRON_RBE_JWT: ${{ secrets.ELECTRON_RBE_JWT }}
   SUDOWOODO_EXCHANGE_URL: ${{ secrets.SUDOWOODO_EXCHANGE_URL }}
   SUDOWOODO_EXCHANGE_TOKEN: ${{ secrets.SUDOWOODO_EXCHANGE_TOKEN }}
-  GCLIENT_EXTRA_ARGS: ${{ inputs.target-platform == 'macos' && '--custom-var=checkout_mac=True --custom-var=host_os=mac' || '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True' }}
+  GCLIENT_EXTRA_ARGS: ${{ inputs.target-platform == 'macos' && '--custom-var=checkout_mac=True --custom-var=host_os=mac' || inputs.target-platform == 'win' && '--custom-var=checkout_win=True' || '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True' }}
   ELECTRON_OUT_DIR: Default
 
 jobs:
   build:
+    defaults:
+      run:
+        shell: bash
     runs-on: ${{ inputs.build-runs-on }}
     container: ${{ fromJSON(inputs.build-container) }}
     environment: ${{ inputs.environment }}
@@ -81,12 +84,14 @@ jobs:
       TARGET_ARCH: ${{ inputs.target-arch }}
     steps:
     - name: Create src dir
-      run: mkdir src
+      run: |
+        mkdir src
     - name: Checkout Electron
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Free up space (macOS)
       if: ${{ inputs.target-platform == 'macos' }}
       uses: ./src/electron/.github/actions/free-space-macos
@@ -101,9 +106,7 @@ jobs:
         cache: yarn
         cache-dependency-path: src/electron/yarn.lock
     - name: Install Dependencies
-      run: |
-        cd src/electron
-        node script/yarn install --frozen-lockfile
+      uses: ./src/electron/.github/actions/install-dependencies
     - name: Install AZCopy
       if: ${{ inputs.target-platform == 'macos' }}
       run: brew install azcopy
@@ -137,16 +140,13 @@ jobs:
 
         # Ensure depot_tools does not update.
         test -d depot_tools && cd depot_tools
-        if [ "`uname`" = "Linux" ]; then
-          git apply --3way ../src/electron/.github/workflows/config/gclient.diff
-        fi
         touch .disable_auto_update
     - name: Add Depot Tools to PATH
       run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH
     - name: Generate DEPS Hash
       run: |
-        node src/electron/script/generate-deps-hash.js && cat src/electron/.depshash-target
-        DEPSHASH=v1-src-cache-$(shasum src/electron/.depshash | cut -f1 -d' ')
+        node src/electron/script/generate-deps-hash.js
+        DEPSHASH=v1-src-cache-$(cat src/electron/.depshash)
         echo "DEPSHASH=$DEPSHASH" >> $GITHUB_ENV
         echo "CACHE_PATH=$DEPSHASH.tar" >> $GITHUB_ENV
     - name: Restore src cache via AZCopy
@@ -155,11 +155,17 @@ jobs:
     - name: Restore src cache via AKS
       if: ${{ inputs.target-platform == 'linux' }}
       uses: ./src/electron/.github/actions/restore-cache-aks
+    - name: Checkout src via gclient sync
+      if: ${{ inputs.target-platform == 'win' }}
+      uses: ./src/electron/.github/actions/checkout
+      with:
+        use-cache: 'false'
     - name: Checkout Electron
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Build Tools
       uses: ./src/electron/.github/actions/install-build-tools
     - name: Init Build Tools
@@ -167,11 +173,11 @@ jobs:
         e init -f --root=$(pwd) --out=Default ${{ inputs.gn-build-type }} --import ${{ inputs.gn-build-type }} --target-cpu ${{ inputs.target-arch }}
     - name: Run Electron Only Hooks
       run: |
-        gclient runhooks --spec="solutions=[{'name':'src/electron','url':None,'deps_file':'DEPS','custom_vars':{'process_deps':False},'managed':False}]"
+        e d gclient runhooks --spec="solutions=[{'name':'src/electron','url':None,'deps_file':'DEPS','custom_vars':{'process_deps':False},'managed':False}]"
     - name: Regenerate DEPS Hash
       run: |
-        (cd src/electron && git checkout .) && node src/electron/script/generate-deps-hash.js && cat src/electron/.depshash-target
-        echo "DEPSHASH=$(shasum src/electron/.depshash | cut -f1 -d' ')" >> $GITHUB_ENV
+        (cd src/electron && git checkout .) && node src/electron/script/generate-deps-hash.js
+        echo "DEPSHASH=$(cat src/electron/.depshash)" >> $GITHUB_ENV
     - name: Add CHROMIUM_BUILDTOOLS_PATH to env
       run: echo "CHROMIUM_BUILDTOOLS_PATH=$(pwd)/src/buildtools" >> $GITHUB_ENV
     - name: Fix Sync (macOS)
@@ -179,7 +185,7 @@ jobs:
       uses: ./src/electron/.github/actions/fix-sync-macos
     - name: Setup Number of Ninja Processes
       run: |
-        echo "NUMBER_OF_NINJA_PROCESSES=${{ inputs.target-platform == 'linux' && '300' || '200' }}" >> $GITHUB_ENV
+        echo "NUMBER_OF_NINJA_PROCESSES=${{ inputs.target-platform != 'macos' && '300' || '200' }}" >> $GITHUB_ENV
     - name: Free up space (macOS)
       if: ${{ inputs.target-platform == 'macos' }}
       uses: ./src/electron/.github/actions/free-space-macos
@@ -189,7 +195,7 @@ jobs:
       with:
         target-arch: ${{ inputs.target-arch }}
         target-platform: ${{ inputs.target-platform }}
-        artifact-platform: ${{ inputs.target-platform == 'linux' && 'linux' || 'darwin' }}
+        artifact-platform: ${{ inputs.target-platform == 'macos' && 'darwin' || inputs.target-platform }}
         is-release: '${{ inputs.is-release }}'
         generate-symbols: '${{ inputs.generate-symbols }}'
         strip-binaries: '${{ inputs.strip-binaries }}'

.github/workflows/pipeline-segment-electron-gn-check.yml

@@ -5,11 +5,11 @@ on:
     inputs:
       target-platform:
         type: string
-        description: 'Platform to run on, can be macos or linux'
+        description: 'Platform to run on, can be macos, win or linux'
         required: true
-      target-arch:
+      target-archs:
         type: string
-        description: 'Arch to build for, can be x64, arm64 or arm'
+        description: 'Archs to check for, can be x64, x86, arm64 or arm space separated'
         required: true
       check-runs-on:
         type: string
@@ -25,35 +25,30 @@ on:
         required: true
         type: string
         default: testing
-      is-asan: 
-        description: 'Building the Address Sanitizer (ASan) Linux build'
-        required: false
-        type: boolean
-        default: false
 
 concurrency:
-  group: electron-gn-check-${{ inputs.target-platform }}-${{ inputs.target-arch }}-${{ inputs.is-asan }}-${{ github.ref }}
+  group: electron-gn-check-${{ inputs.target-platform }}-${{ github.ref }}
   cancel-in-progress: true
 
 env:
   ELECTRON_RBE_JWT: ${{ secrets.ELECTRON_RBE_JWT }}
-  GCLIENT_EXTRA_ARGS: ${{ inputs.target-platform == 'macos' && '--custom-var=checkout_mac=True --custom-var=host_os=mac' || '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True' }}
+  GCLIENT_EXTRA_ARGS: ${{ inputs.target-platform == 'macos' && '--custom-var=checkout_mac=True --custom-var=host_os=mac' || (inputs.target-platform == 'linux' && '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True' || '--custom-var=checkout_win=True') }}
   ELECTRON_OUT_DIR: Default
-  TARGET_ARCH: ${{ inputs.target-arch }}
 
 jobs:
   gn-check:
-    # TODO(codebytere): Change this to medium VM
+    defaults:
+      run:
+        shell: bash
     runs-on: ${{ inputs.check-runs-on }}
     container: ${{ fromJSON(inputs.check-container) }}
-    env:
-      TARGET_ARCH: ${{ inputs.target-arch }}
     steps:
     - name: Checkout Electron
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Cleanup disk space on macOS
       if: ${{ inputs.target-platform == 'macos' }}
       shell: bash
@@ -73,58 +68,40 @@ jobs:
       run: df -h        
     - name: Install Build Tools
       uses: ./src/electron/.github/actions/install-build-tools
-    - name: Init Build Tools
+    - name: Enable windows toolchain
+      if: ${{ inputs.target-platform == 'win' }}
       run: |
-        e init -f --root=$(pwd) --out=Default ${{ inputs.gn-build-type }} --import ${{ inputs.gn-build-type }} --target-cpu ${{ inputs.target-arch }}
-    - name: Get Depot Tools
-      timeout-minutes: 5
-      run: |
-        git clone --filter=tree:0 https://chromium.googlesource.com/chromium/tools/depot_tools.git
-
-        SEDOPTION="-i"
-        if [ "`uname`" = "Darwin" ]; then
-          SEDOPTION="-i ''"
-        fi
-
-        # remove ninjalog_uploader_wrapper.py from autoninja since we don't use it and it causes problems
-        sed $SEDOPTION '/ninjalog_uploader_wrapper.py/d' ./depot_tools/autoninja
-
-        # Ensure depot_tools does not update.
-        test -d depot_tools && cd depot_tools
-        if [ "`uname`" = "Linux" ]; then
-          git apply --3way ../src/electron/.github/workflows/config/gclient.diff
-        fi
-        touch .disable_auto_update
-    - name: Add Depot Tools to PATH
-      run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH
-    - name: Set GN_EXTRA_ARGS for Linux
-      if: ${{ inputs.target-platform == 'linux' }}
-      run: |
-        if [ "${{ inputs.target-arch  }}" = "arm" ]; then
-          GN_EXTRA_ARGS='build_tflite_with_xnnpack=false'
-        elif [ "${{ inputs.target-arch }}" = "arm64" ]; then
-          GN_EXTRA_ARGS='fatal_linker_warnings=false enable_linux_installer=false'
-        fi
-        echo "GN_EXTRA_ARGS=$GN_EXTRA_ARGS" >> $GITHUB_ENV
+        echo "ELECTRON_DEPOT_TOOLS_WIN_TOOLCHAIN=1" >> $GITHUB_ENV
     - name: Generate DEPS Hash
       run: |
-        node src/electron/script/generate-deps-hash.js && cat src/electron/.depshash-target
-        DEPSHASH=v1-src-cache-$(shasum src/electron/.depshash | cut -f1 -d' ')
+        node src/electron/script/generate-deps-hash.js
+        DEPSHASH=v1-src-cache-$(cat src/electron/.depshash)
         echo "DEPSHASH=$DEPSHASH" >> $GITHUB_ENV
         echo "CACHE_PATH=$DEPSHASH.tar" >> $GITHUB_ENV
     - name: Restore src cache via AZCopy
       if: ${{ inputs.target-platform == 'macos' }}
       uses: ./src/electron/.github/actions/restore-cache-azcopy
     - name: Restore src cache via AKS
-      if: ${{ inputs.target-platform == 'linux' }}
+      if: ${{ inputs.target-platform == 'linux' || inputs.target-platform == 'win' }}
       uses: ./src/electron/.github/actions/restore-cache-aks
     - name: Run Electron Only Hooks
       run: |
-        gclient runhooks --spec="solutions=[{'name':'src/electron','url':None,'deps_file':'DEPS','custom_vars':{'process_deps':False},'managed':False}]"
+        echo "solutions=[{'name':'src/electron','url':None,'deps_file':'DEPS','custom_vars':{'process_deps':False},'managed':False}]" > tmpgclient
+        if [ "${{ inputs.target-platform }}" = "win" ]; then
+          echo "solutions=[{'name':'src/electron','url':None,'deps_file':'DEPS','custom_vars':{'process_deps':False,'install_sysroot':False,'checkout_win':True},'managed':False}]" > tmpgclient
+          echo "target_os=['win']" >> tmpgclient
+        fi
+        e d gclient runhooks --gclientfile=tmpgclient
+
+        # Fix VS Toolchain
+        if [ "${{ inputs.target-platform }}" = "win" ]; then
+          rm -rf src/third_party/depot_tools/win_toolchain/vs_files
+          e d python3 src/build/vs_toolchain.py update --force
+        fi
     - name: Regenerate DEPS Hash
       run: |
-        (cd src/electron && git checkout .) && node src/electron/script/generate-deps-hash.js && cat src/electron/.depshash-target
-        echo "DEPSHASH=$(shasum src/electron/.depshash | cut -f1 -d' ')" >> $GITHUB_ENV
+        (cd src/electron && git checkout .) && node src/electron/script/generate-deps-hash.js
+        echo "DEPSHASH=$(cat src/electron/.depshash)" >> $GITHUB_ENV
     - name: Add CHROMIUM_BUILDTOOLS_PATH to env
       run: echo "CHROMIUM_BUILDTOOLS_PATH=$(pwd)/src/buildtools" >> $GITHUB_ENV
     - name: Checkout Electron
@@ -132,30 +109,46 @@ jobs:
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Dependencies
-      run: |
-        cd src/electron
-        node script/yarn install --frozen-lockfile
+      uses: ./src/electron/.github/actions/install-dependencies
     - name: Default GN gen
       run: |
         cd src/electron
         git pack-refs
-        cd ..
-
-        e build --only-gen
-    - name: Run GN Check
+    - name: Run GN Check for ${{ inputs.target-archs }}
       run: |
-        cd src
-        gn check out/Default //electron:electron_lib
-        gn check out/Default //electron:electron_app
-        gn check out/Default //electron/shell/common:mojo
-        gn check out/Default //electron/shell/common:plugin
+        for target_cpu in ${{ inputs.target-archs }}
+        do
+          e init -f --root=$(pwd) --out=Default ${{ inputs.gn-build-type }} --import ${{ inputs.gn-build-type }} --target-cpu $target_cpu
+          cd src
+          export GN_EXTRA_ARGS="target_cpu=\"$target_cpu\""
+          if [ "${{ inputs.target-platform }}" = "linux" ]; then
+            if [ "$target_cpu" = "arm" ]; then
+              export GN_EXTRA_ARGS="$GN_EXTRA_ARGS build_tflite_with_xnnpack=false"
+            elif [ "$target_cpu" = "arm64" ]; then
+              export GN_EXTRA_ARGS="$GN_EXTRA_ARGS fatal_linker_warnings=false enable_linux_installer=false"
+            fi
+          fi
+          if [ "${{ inputs.target-platform }}" = "win" ]; then
+            export GN_EXTRA_ARGS="$GN_EXTRA_ARGS use_v8_context_snapshot=true target_os=\"win\""
+          fi
 
-        # Check the hunspell filenames
-        node electron/script/gen-hunspell-filenames.js --check
-        node electron/script/gen-libc++-filenames.js --check
+          e build --only-gen
+
+          e d gn check out/Default //electron:electron_lib
+          e d gn check out/Default //electron:electron_app
+          e d gn check out/Default //electron/shell/common:mojo
+          e d gn check out/Default //electron/shell/common:plugin
+
+          # Check the hunspell filenames
+          node electron/script/gen-hunspell-filenames.js --check
+          node electron/script/gen-libc++-filenames.js --check
+          cd ..
+        done
     - name: Wait for active SSH sessions
       if: always() && !cancelled()
+      shell: bash
       run: |
         while [ -f /var/.ssh-lock ]
         do

.github/workflows/pipeline-segment-electron-test.yml

@@ -5,7 +5,7 @@ on:
     inputs:
       target-platform:
         type: string
-        description: 'Platform to run on, can be macos or linux'
+        description: 'Platform to run on, can be macos, win or linux'
         required: true
       target-arch:
         type: string
@@ -41,22 +41,44 @@ env:
 
 jobs:
   test:
+    defaults:
+      run:
+        shell: bash
     runs-on: ${{ inputs.test-runs-on }}
     container: ${{ fromJSON(inputs.test-container) }}
     strategy:
       fail-fast: false
       matrix:
-        build-type: ${{ inputs.target-platform == 'macos' && fromJSON('["darwin","mas"]') || fromJSON('["linux"]') }}
-        shard: ${{ inputs.target-platform == 'macos' && fromJSON('[1, 2]') || fromJSON('[1, 2, 3]') }}
+        build-type: ${{ inputs.target-platform == 'macos' && fromJSON('["darwin","mas"]') || (inputs.target-platform == 'win' && fromJSON('["win"]') || fromJSON('["linux"]')) }}
+        shard: ${{ inputs.target-platform == 'linux' && fromJSON('[1, 2, 3]') || fromJSON('[1, 2]') }}
     env:
       BUILD_TYPE: ${{ matrix.build-type }}
       TARGET_ARCH: ${{ inputs.target-arch }}
       ARTIFACT_KEY: ${{ matrix.build-type }}_${{ inputs.target-arch }}
     steps:
     - name: Fix node20 on arm32 runners
-      if: ${{ inputs.target-arch == 'arm' }}
+      if: ${{ inputs.target-arch == 'arm' && inputs.target-platform == 'linux' }}
       run: |
         cp $(which node) /mnt/runner-externals/node20/bin/
+    - name: Install Git on Windows arm64 runners
+      if: ${{ inputs.target-arch == 'arm64' && inputs.target-platform == 'win' }}
+      shell: powershell
+      run: |
+        Set-ExecutionPolicy Bypass -Scope Process -Force
+        [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072
+        iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))
+        choco install -y --no-progress git.install --params "'/GitAndUnixToolsOnPath'"
+        choco install -y --no-progress git
+        choco install -y --no-progress python --version 3.11.9
+        choco install -y --no-progress visualstudio2022-workload-vctools --package-parameters "--add Microsoft.VisualStudio.Component.VC.Tools.ARM64"
+        echo "C:\Program Files\Git\cmd" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+        echo "C:\Program Files\Git\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+        echo "C:\Python311" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+    - name: Setup Node.js/npm
+      if: ${{ inputs.target-platform == 'win' }}
+      uses: actions/setup-node@0a44ba7841725637a19e28fa30b79a866c81b0a6
+      with:
+        node-version: 20.11.x
     - name: Add TCC permissions on macOS
       if: ${{ inputs.target-platform == 'macos' }}
       run: |
@@ -95,24 +117,18 @@ jobs:
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Dependencies
-      run: |
-        cd src/electron
-        node script/yarn install --frozen-lockfile
+      uses: ./src/electron/.github/actions/install-dependencies
     - name: Get Depot Tools
       timeout-minutes: 5
       run: |
+        git config --global core.filemode false
+        git config --global core.autocrlf false
+        git config --global branch.autosetuprebase always
         git clone --filter=tree:0 https://chromium.googlesource.com/chromium/tools/depot_tools.git
         # Ensure depot_tools does not update.
         test -d depot_tools && cd depot_tools
-        if [ "`uname`" = "Darwin" ]; then
-          # remove ninjalog_uploader_wrapper.py from autoninja since we don't use it and it causes problems
-          sed -i '' '/ninjalog_uploader_wrapper.py/d' ./autoninja
-        else
-          sed -i '/ninjalog_uploader_wrapper.py/d' ./autoninja
-          # Remove swift-format dep from cipd on macOS until we send a patch upstream.
-          git apply --3way ../src/electron/.github/workflows/config/gclient.diff
-        fi
         touch .disable_auto_update
     - name: Add Depot Tools to PATH
       run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH
@@ -134,7 +150,17 @@ jobs:
         path: ./src_artifacts_${{ matrix.build-type }}_${{ inputs.target-arch }}
     - name: Restore Generated Artifacts
       run: ./src/electron/script/actions/restore-artifacts.sh
-    - name: Unzip Dist, Mksnapshot & Chromedriver
+    - name: Unzip Dist, Mksnapshot & Chromedriver (win)
+      if: ${{ inputs.target-platform == 'win' }}
+      shell: powershell
+      run: |
+        Set-ExecutionPolicy Bypass -Scope Process -Force
+        cd src/out/Default
+        Expand-Archive -Force dist.zip -DestinationPath ./
+        Expand-Archive -Force chromedriver.zip -DestinationPath ./
+        Expand-Archive -Force mksnapshot.zip -DestinationPath ./
+    - name: Unzip Dist, Mksnapshot & Chromedriver (unix)
+      if: ${{ inputs.target-platform != 'win' }}
       run: |
         cd src/out/Default
         unzip -:o dist.zip
@@ -158,15 +184,24 @@ jobs:
         ELECTRON_DISABLE_SECURITY_WARNINGS: 1
         ELECTRON_SKIP_NATIVE_MODULE_TESTS: true
         DISPLAY: ':99.0'
+        NPM_CONFIG_MSVS_VERSION: '2022'
       run: |
         cd src/electron
         export ELECTRON_TEST_RESULTS_DIR=`pwd`/junit
         # Get which tests are on this shard
-        tests_files=$(node script/split-tests ${{ matrix.shard }} ${{ inputs.target-platform == 'macos' && 2 || 3 }})
+        tests_files=$(node script/split-tests ${{ matrix.shard }} ${{ inputs.target-platform == 'linux' && 3 || 2 }})
 
         # Run tests
-        if [ "`uname`" = "Darwin" ]; then
+        if [ "${{ inputs.target-platform }}" != "linux" ]; then
           echo "About to start tests"
+          if [ "${{ inputs.target-platform }}" = "win" ]; then
+            if [ "${{ inputs.target-arch }}" = "x86" ]; then
+              export npm_config_arch="ia32"
+            fi
+            if [ "${{ inputs.target-arch }}" = "arm64" ]; then
+              export ELECTRON_FORCE_TEST_SUITE_EXIT="true"
+            fi
+          fi
           node script/yarn test --runners=main --trace-uncaught --enable-logging --files $tests_files
         else
           chown :builduser .. && chmod g+w ..
@@ -197,19 +232,21 @@ jobs:
         DD_CIVISIBILITY_LOGS_ENABLED: true
         DD_TAGS: "os.architecture:${{ inputs.target-arch }},os.family:${{ inputs.target-platform }},os.platform:${{ inputs.target-platform }},asan:${{ inputs.is-asan }}"
       run: |
-        if ! [ -z $DD_API_KEY ]; then
-          datadog-ci junit upload src/electron/junit/test-results-main.xml
+        if ! [ -z $DD_API_KEY ] && [ -f src/electron/junit/test-results-main.xml ]; then
+          export DATADOG_PATH=`node src/electron/script/yarn global bin`
+          $DATADOG_PATH/datadog-ci junit upload src/electron/junit/test-results-main.xml
         fi          
       if: always() && !cancelled()
     - name: Upload Test Artifacts
       if: always() && !cancelled()
-      uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882
+      uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b
       with:
-        name: test_artifacts_${{ env.ARTIFACT_KEY }}
+        name: test_artifacts_${{ env.ARTIFACT_KEY }}_${{ matrix.shard }}
         path: src/electron/spec/artifacts
         if-no-files-found: ignore
     - name: Wait for active SSH sessions
       if: always() && !cancelled()
+      shell: bash
       run: |
         while [ -f /var/.ssh-lock ]
         do

.github/workflows/pipeline-segment-node-nan-test.yml

@@ -5,7 +5,7 @@ on:
     inputs:
       target-platform:
         type: string
-        description: 'Platform to run on, can be macos or linux'
+        description: 'Platform to run on, can be macos, win or linux'
         required: true
       target-arch:
         type: string
@@ -49,23 +49,20 @@ jobs:
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Build Tools
       uses: ./src/electron/.github/actions/install-build-tools
     - name: Init Build Tools
       run: |
         e init -f --root=$(pwd) --out=Default ${{ inputs.gn-build-type }} --import ${{ inputs.gn-build-type }} --target-cpu ${{ inputs.target-arch }}
     - name: Install Dependencies
-      run: |
-        cd src/electron
-        node script/yarn install --frozen-lockfile
+      uses: ./src/electron/.github/actions/install-dependencies
     - name: Get Depot Tools
       timeout-minutes: 5
       run: |
         git clone --filter=tree:0 https://chromium.googlesource.com/chromium/tools/depot_tools.git
-        sed -i '/ninjalog_uploader_wrapper.py/d' ./depot_tools/autoninja
         # Ensure depot_tools does not update.
         test -d depot_tools && cd depot_tools
-        git apply --3way ../src/electron/.github/workflows/config/gclient.diff
         touch .disable_auto_update
     - name: Add Depot Tools to PATH
       run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH
@@ -93,6 +90,7 @@ jobs:
         node electron/script/node-spec-runner.js --default --jUnitDir=junit
     - name: Wait for active SSH sessions
       if: always() && !cancelled()
+      shell: bash
       run: |
         while [ -f /var/.ssh-lock ]
         do
@@ -112,23 +110,20 @@ jobs:
       with:
         path: src/electron
         fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Build Tools
       uses: ./src/electron/.github/actions/install-build-tools
     - name: Init Build Tools
       run: |
         e init -f --root=$(pwd) --out=Default ${{ inputs.gn-build-type }}
     - name: Install Dependencies
-      run: |
-        cd src/electron
-        node script/yarn install --frozen-lockfile
+      uses: ./src/electron/.github/actions/install-dependencies
     - name: Get Depot Tools
       timeout-minutes: 5
       run: |
         git clone --filter=tree:0 https://chromium.googlesource.com/chromium/tools/depot_tools.git
-        sed -i '/ninjalog_uploader_wrapper.py/d' ./depot_tools/autoninja
         # Ensure depot_tools does not update.
         test -d depot_tools && cd depot_tools
-        git apply --3way ../src/electron/.github/workflows/config/gclient.diff
         touch .disable_auto_update
     - name: Add Depot Tools to PATH
       run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH
@@ -155,6 +150,7 @@ jobs:
         cd src
         node electron/script/nan-spec-runner.js
     - name: Wait for active SSH sessions
+      shell: bash
       if: always() && !cancelled()
       run: |
         while [ -f /var/.ssh-lock ]

.github/workflows/pull-request-labeled.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Trigger Slack workflow
-        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 # v1.27.0
+        uses: slackapi/slack-github-action@485a9d42d3a73031f12ec201c457e2162c45d02d # v2.0.0
         with:
           payload: |
             {
@@ -33,7 +33,7 @@ jobs:
           creds: ${{ secrets.RELEASE_BOARD_GH_APP_CREDS }}
           org: electron
       - name: Set status
-        uses: dsanders11/project-actions/edit-item@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/edit-item@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         with:
           token: ${{ steps.generate-token.outputs.token }}
           project-number: 94

.github/workflows/scorecards.yml

@@ -42,7 +42,7 @@ jobs:
       # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
       # format to the repository Actions tab.
       - name: "Upload artifact"
-        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3
+        uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b # v4.5.0
         with:
           name: SARIF file
           path: results.sarif
@@ -50,6 +50,6 @@ jobs:
 
       # Upload the results to GitHub's code scanning dashboard.
       - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@662472033e021d55d94146f66f6058822b0b39fd # v3.27.0
+        uses: github/codeql-action/upload-sarif@48ab28a6f5dbc2a99bf1e0131198dd8f1df78169 # v3.28.0
         with:
           sarif_file: results.sarif

.github/workflows/stable-prep-items.yml

@@ -27,7 +27,7 @@ jobs:
           PROJECT_NUMBER=$(gh project list --owner electron --format json | jq -r '.projects | map(select(.title | test("^[0-9]+-x-y$"))) | max_by(.number) | .number')
           echo "PROJECT_NUMBER=$PROJECT_NUMBER" >> "$GITHUB_OUTPUT"
       - name: Update Completed Stable Prep Items
-        uses: dsanders11/project-actions/completed-by@eb760c48894b5702398529cbb8f6e98378e315d0 # v1.3.0
+        uses: dsanders11/project-actions/completed-by@438b25e007c2f4efec324497fadc6402e7cc61a6 # v1.4.0
         with:
           field: Prep Status
           field-value: ✅ Complete

.github/workflows/update_appveyor_image.yml

@@ -23,6 +23,7 @@ jobs:
       with:
         fetch-depth: 0
         token: ${{ steps.generate-token.outputs.token }}
+        ref: ${{ github.event.pull_request.head.sha }}
     - name: Setup Node.js
       uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4.1.0
       with:
@@ -43,7 +44,7 @@ jobs:
         fi
     - name: (Optionally) Update Appveyor Image
       if: ${{ env.APPVEYOR_IMAGE_VERSION }}
-      uses: mikefarah/yq@bbdd97482f2d439126582a59689eb1c855944955 # v4.44.3
+      uses: mikefarah/yq@4839dbbf80445070a31c7a9c1055da527db2d5ee # v4.44.6
       with:
         cmd: |
           yq '.image = "${{ env.APPVEYOR_IMAGE_VERSION }}"' "appveyor.yml" > "appveyor2.yml"

.gitignore

@@ -48,7 +48,6 @@ ts-gen
 
 # Used to accelerate CI builds
 .depshash
-.depshash-target
 
 # Used to accelerate builds after sync
 patches/mtime-cache.json

BUILD.gn

@@ -9,7 +9,7 @@ import("//pdf/features.gni")
 import("//ppapi/buildflags/buildflags.gni")
 import("//printing/buildflags/buildflags.gni")
 import("//testing/test.gni")
-import("//third_party/electron_node/electron_node.gni")
+import("//third_party/electron_node/node.gni")
 import("//third_party/ffmpeg/ffmpeg_options.gni")
 import("//tools/generate_library_loader/generate_library_loader.gni")
 import("//tools/grit/grit_rule.gni")
@@ -84,7 +84,10 @@ if (is_linux) {
   # from the gtk library. Function signatures for which stubs are
   # required should be declared in the sig files.
   generate_stubs("electron_gtk_stubs") {
-    sigs = [ "shell/browser/ui/electron_gdk_pixbuf.sigs" ]
+    sigs = [
+      "shell/browser/ui/electron_gdk.sigs",
+      "shell/browser/ui/electron_gdk_pixbuf.sigs",
+    ]
     extra_header = "shell/browser/ui/electron_gtk.fragment"
     output_name = "electron_gtk_stubs"
     public_deps = [ "//ui/gtk:gtk_config" ]
@@ -221,11 +224,21 @@ webpack_build("electron_utility_bundle") {
   out_file = "$target_gen_dir/js2c/utility_init.js"
 }
 
+webpack_build("electron_preload_realm_bundle") {
+  deps = [ ":build_electron_definitions" ]
+
+  inputs = auto_filenames.preload_realm_bundle_deps
+
+  config_file = "//electron/build/webpack/webpack.config.preload_realm.js"
+  out_file = "$target_gen_dir/js2c/preload_realm_bundle.js"
+}
+
 action("electron_js2c") {
   deps = [
     ":electron_browser_bundle",
     ":electron_isolated_renderer_bundle",
     ":electron_node_bundle",
+    ":electron_preload_realm_bundle",
     ":electron_renderer_bundle",
     ":electron_sandboxed_renderer_bundle",
     ":electron_utility_bundle",
@@ -237,6 +250,7 @@ action("electron_js2c") {
     "$target_gen_dir/js2c/browser_init.js",
     "$target_gen_dir/js2c/isolated_bundle.js",
     "$target_gen_dir/js2c/node_init.js",
+    "$target_gen_dir/js2c/preload_realm_bundle.js",
     "$target_gen_dir/js2c/renderer_init.js",
     "$target_gen_dir/js2c/sandbox_bundle.js",
     "$target_gen_dir/js2c/utility_init.js",
@@ -408,7 +422,7 @@ action("electron_generate_node_defines") {
 source_set("electron_lib") {
   configs += [
     "//v8:external_startup_data",
-    "//third_party/electron_node:node_internals",
+    "//third_party/electron_node:node_external_config",
   ]
 
   public_configs = [
@@ -483,7 +497,7 @@ source_set("electron_lib") {
     "//third_party/blink/public:blink_devtools_inspector_resources",
     "//third_party/blink/public/platform/media",
     "//third_party/boringssl",
-    "//third_party/electron_node:node_lib",
+    "//third_party/electron_node:libnode",
     "//third_party/inspector_protocol:crdtp",
     "//third_party/leveldatabase",
     "//third_party/libyuv",
@@ -518,7 +532,10 @@ source_set("electron_lib") {
     "//third_party/blink/renderer",
   ]
 
-  defines = [ "V8_DEPRECATION_WARNINGS" ]
+  defines = [
+    "BLINK_MOJO_IMPL=1",
+    "V8_DEPRECATION_WARNINGS",
+  ]
   libs = []
 
   if (is_linux) {
@@ -865,7 +882,7 @@ if (is_mac) {
       ":electron_framework_resources",
       ":electron_swiftshader_library",
       ":electron_xibs",
-      "//third_party/electron_node:node_lib",
+      "//third_party/electron_node:libnode",
     ]
     if (!is_mas_build) {
       deps += [ ":electron_crashpad_helper" ]
@@ -1189,7 +1206,7 @@ if (is_mac) {
       "//components/crash/core/app",
       "//content:sandbox_helper_win",
       "//electron/buildflags",
-      "//third_party/electron_node:node_lib",
+      "//third_party/electron_node:libnode",
       "//ui/strings",
     ]
 
@@ -1501,21 +1518,8 @@ group("electron") {
 ##### node_headers
 
 node_dir = "../third_party/electron_node"
-node_files = read_file("$node_dir/filenames.json", "json")
 node_headers_dir = "$root_gen_dir/node_headers"
 
-header_group_index = 0
-header_groups = []
-foreach(header_group, node_files.headers) {
-  copy("node_headers_${header_group_index}") {
-    sources = rebase_path(header_group.files, ".", node_dir)
-    outputs =
-        [ "$node_headers_dir/${header_group.dest_dir}/{{source_file_part}}" ]
-  }
-  header_groups += [ ":node_headers_${header_group_index}" ]
-  header_group_index += 1
-}
-
 copy("zlib_headers") {
   sources = [
     "$node_dir/deps/zlib/zconf.h",
@@ -1543,6 +1547,12 @@ action("node_version_header") {
   }
 }
 
+action("generate_node_headers") {
+  deps = [ ":generate_config_gypi" ]
+  script = "script/node/generate_node_headers.py"
+  outputs = [ "$root_gen_dir/node_headers.json" ]
+}
+
 action("tar_node_headers") {
   deps = [ ":copy_node_headers" ]
   outputs = [ "$root_gen_dir/node_headers.tar.gz" ]
@@ -1554,11 +1564,12 @@ action("tar_node_headers") {
 }
 
 group("copy_node_headers") {
-  public_deps = header_groups + [
-                  ":node_gypi_headers",
-                  ":node_version_header",
-                  ":zlib_headers",
-                ]
+  public_deps = [
+    ":generate_node_headers",
+    ":node_gypi_headers",
+    ":node_version_header",
+    ":zlib_headers",
+  ]
 }
 
 group("node_headers") {

CONTRIBUTING.md

@@ -12,7 +12,7 @@ propose changes to this document in a pull request.
 
 ## [Issues](https://electronjs.org/docs/development/issues)
 
-Issues are created [here](https://github.com/electron/electron/issues/new).
+Issues are created [here](https://github.com/electron/electron/issues/new/choose).
 
 * [How to Contribute in Issues](https://electronjs.org/docs/development/issues#how-to-contribute-in-issues)
 * [Asking for General Help](https://electronjs.org/docs/development/issues#asking-for-general-help)

DEPS

@@ -2,9 +2,9 @@ gclient_gn_args_from = 'src'
 
 vars = {
   'chromium_version':
-    '132.0.6789.0',
+    '133.0.6887.0',
   'node_version':
-    'v20.18.0',
+    'v22.9.0',
   'nan_version':
     'e14bdcd1f72d62bca1d541b66da43130384ec213',
   'squirrel.mac_version':

appveyor-woa.yml

@@ -29,7 +29,7 @@
 
 version: 1.0.{build}
 build_cloud: electronhq-16-core
-image: e-132.0.6788.0
+image: e-133.0.6878.0
 environment:
   GIT_CACHE_PATH: C:\Users\appveyor\libcc_cache
   ELECTRON_OUT_DIR: Default
@@ -39,7 +39,7 @@ environment:
   MOCHA_MULTI_REPORTERS: "@marshallofsound/mocha-appveyor-reporter, mocha-junit-reporter, tap"
   DEPOT_TOOLS_WIN_TOOLCHAIN: 1
   DEPOT_TOOLS_WIN_TOOLCHAIN_BASE_URL: "https://dev-cdn.electronjs.org/windows-toolchains/_"  
-  GYP_MSVS_HASH_698eb5635a: e2bf90edff
+  GYP_MSVS_HASH_7393122652: 3ba76c5c20
   PYTHONIOENCODING: UTF-8
 
   matrix:

appveyor.yml

@@ -29,7 +29,7 @@
 
 version: 1.0.{build}
 build_cloud: electronhq-16-core
-image: e-132.0.6788.0
+image: e-133.0.6878.0
 environment:
   GIT_CACHE_PATH: C:\Users\appveyor\libcc_cache
   ELECTRON_OUT_DIR: Default
@@ -39,7 +39,7 @@ environment:
   MOCHA_MULTI_REPORTERS: "@marshallofsound/mocha-appveyor-reporter, mocha-junit-reporter, tap"
   DEPOT_TOOLS_WIN_TOOLCHAIN: 1
   DEPOT_TOOLS_WIN_TOOLCHAIN_BASE_URL: "https://dev-cdn.electronjs.org/windows-toolchains/_"
-  GYP_MSVS_HASH_698eb5635a: e2bf90edff
+  GYP_MSVS_HASH_7393122652: 3ba76c5c20
   PYTHONIOENCODING: UTF-8
 
   matrix:
@@ -187,7 +187,12 @@ for:
             7z a pdb.zip out\Default\*.pdb
           }
       - ps: |
-          $manifest_file = "electron/script/zip_manifests/dist_zip.win.$env:TARGET_ARCH.manifest"
+          if ($env:TARGET_ARCH -eq 'ia32') {
+            $env:MANIFEST_ARCH = "x86"
+          } else {
+            $env:MANIFEST_ARCH = $env:TARGET_ARCH
+          }
+          $manifest_file = "electron/script/zip_manifests/dist_zip.win.$env:MANIFEST_ARCH.manifest"
           python3 electron/script/zip_manifests/check-zip-manifest.py out/Default/dist.zip $manifest_file
           if ($LASTEXITCODE -ne 0) {
             throw "Zip contains files not listed in the manifest $manifest_file"

build/generate_node_defines.py

@@ -2,7 +2,7 @@ import os
 import re
 import sys
 
-DEFINE_EXTRACT_REGEX = re.compile('^ *# *define (\w*)', re.MULTILINE)
+DEFINE_EXTRACT_REGEX = re.compile(r'^ *# *define (\w*)', re.MULTILINE)
 
 def main(out_dir, headers):
   defines = []

build/rules.gni

@@ -29,7 +29,7 @@ template("compile_ib_files") {
 
     _output_extension = invoker.output_extension
 
-    script = "//build/config/ios/compile_ib_files.py"
+    script = "//build/config/apple/compile_ib_files.py"
     sources = invoker.sources
     outputs = [
       "$target_gen_dir/$target_name/{{source_name_part}}.$_output_extension",

build/webpack/webpack.config.preload_realm.js

@@ -0,0 +1,6 @@
+module.exports = require('./webpack.config.base')({
+  target: 'preload_realm',
+  alwaysHasNode: false,
+  wrapInitWithProfilingTimeout: true,
+  wrapInitWithTryCatch: true
+});

build/zip.py

@@ -59,7 +59,7 @@ def skip_path(dep, dist_zip, target_cpu):
       and dep == "snapshot_blob.bin"
     )
   )
-  if should_skip:
+  if should_skip and os.environ.get('ELECTRON_DEBUG_ZIP_SKIP') == '1':
     print("Skipping {}".format(dep))
   return should_skip
 

chromium_src/BUILD.gn

@@ -160,14 +160,12 @@ static_library("chrome") {
       "//chrome/browser/icon_loader_win.cc",
       "//chrome/browser/media/webrtc/window_icon_util_win.cc",
       "//chrome/browser/process_singleton_win.cc",
-      "//chrome/browser/ui/frame/window_frame_util.h",
       "//chrome/browser/win/chrome_process_finder.cc",
       "//chrome/browser/win/chrome_process_finder.h",
       "//chrome/browser/win/chrome_select_file_dialog_factory.cc",
       "//chrome/browser/win/chrome_select_file_dialog_factory.h",
       "//chrome/browser/win/titlebar_config.cc",
       "//chrome/browser/win/titlebar_config.h",
-      "//chrome/browser/win/titlebar_config.h",
       "//chrome/browser/win/util_win_service.cc",
       "//chrome/browser/win/util_win_service.h",
       "//chrome/child/v8_crashpad_support_win.cc",
@@ -182,13 +180,14 @@ static_library("chrome") {
   public_deps = [
     "//chrome/browser:dev_ui_browser_resources",
     "//chrome/browser/resources/accessibility:resources",
+    "//chrome/browser/ui/color:color_headers",
     "//chrome/browser/ui/color:mixers",
     "//chrome/common",
     "//chrome/common:version_header",
+    "//components/global_media_controls",
     "//components/keyed_service/content",
     "//components/paint_preview/buildflags",
     "//components/proxy_config",
-    "//components/services/language_detection/public/mojom",
     "//content/public/browser",
     "//services/strings",
   ]
@@ -220,7 +219,11 @@ static_library("chrome") {
   }
 
   if (is_linux) {
-    sources += [ "//chrome/browser/icon_loader_auralinux.cc" ]
+    sources += [
+      "//chrome/browser/extensions/global_shortcut_listener_linux.cc",
+      "//chrome/browser/extensions/global_shortcut_listener_linux.h",
+      "//chrome/browser/icon_loader_auralinux.cc",
+    ]
     if (use_ozone) {
       deps += [ "//ui/ozone" ]
       sources += [
@@ -238,10 +241,7 @@ static_library("chrome") {
       "//chrome/browser/ui/views/dark_mode_manager_linux.cc",
       "//chrome/browser/ui/views/dark_mode_manager_linux.h",
     ]
-    public_deps += [
-      "//components/dbus/menu",
-      "//components/dbus/thread_linux",
-    ]
+    public_deps += [ "//components/dbus" ]
   }
 
   if (is_win) {

docs/README.md

@@ -128,6 +128,7 @@ These individual tutorials expand on topics discussed in the guide above.
 * [pushNotifications](api/push-notifications.md)
 * [safeStorage](api/safe-storage.md)
 * [screen](api/screen.md)
+* [ServiceWorkerMain](api/service-worker-main.md)
 * [session](api/session.md)
 * [ShareMenu](api/share-menu.md)
 * [systemPreferences](api/system-preferences.md)

docs/api/app.md

@@ -416,7 +416,7 @@ Returns:
     * `launch-failed` - Process never successfully launched
     * `integrity-failure` - Windows code integrity checks failed
   * `exitCode` number - The exit code for the process
-      (e.g. status from waitpid if on posix, from GetExitCodeProcess on Windows).
+      (e.g. status from waitpid if on POSIX, from GetExitCodeProcess on Windows).
   * `serviceName` string (optional) - The non-localized name of the process.
   * `name` string (optional) - The name of the process.
     Examples for utility: `Audio Service`, `Content Decryption Module Service`, `Network Service`, `Video Capture`, etc.
@@ -514,20 +514,20 @@ and `will-quit` events will not be emitted.
   * `args` string[] (optional)
   * `execPath` string (optional)
 
-Relaunches the app when current instance exits.
+Relaunches the app when the current instance exits.
 
 By default, the new instance will use the same working directory and command line
-arguments with current instance. When `args` is specified, the `args` will be
-passed as command line arguments instead. When `execPath` is specified, the
-`execPath` will be executed for relaunch instead of current app.
+arguments as the current instance. When `args` is specified, the `args` will be
+passed as the command line arguments instead. When `execPath` is specified, the
+`execPath` will be executed for the relaunch instead of the current app.
 
-Note that this method does not quit the app when executed, you have to call
+Note that this method does not quit the app when executed. You have to call
 `app.quit` or `app.exit` after calling `app.relaunch` to make the app restart.
 
-When `app.relaunch` is called for multiple times, multiple instances will be
-started after current instance exited.
+When `app.relaunch` is called multiple times, multiple instances will be
+started after the current instance exits.
 
-An example of restarting current instance immediately and adding a new command
+An example of restarting the current instance immediately and adding a new command
 line argument to the new instance:
 
 ```js
@@ -1302,23 +1302,24 @@ Returns `Object`:
 Set the app's login item settings.
 
 To work with Electron's `autoUpdater` on Windows, which uses [Squirrel][Squirrel-Windows],
-you'll want to set the launch path to Update.exe, and pass arguments that specify your
-application name. For example:
+you'll want to set the launch path to your executable's name but a directory up, which is
+a stub application automatically generated by Squirrel which will automatically launch the
+latest version.
 
 ``` js
 const { app } = require('electron')
 const path = require('node:path')
 
 const appFolder = path.dirname(process.execPath)
-const updateExe = path.resolve(appFolder, '..', 'Update.exe')
-const exeName = path.basename(process.execPath)
+const ourExeName = path.basename(process.execPath)
+const stubLauncher = path.resolve(appFolder, '..', ourExeName)
 
 app.setLoginItemSettings({
   openAtLogin: true,
-  path: updateExe,
+  path: stubLauncher,
   args: [
-    '--processStart', `"${exeName}"`,
-    '--process-start-args', '"--hidden"'
+    // You might want to pass a parameter here indicating that this
+    // app was launched via login, but you don't have to
   ]
 })
 ```

docs/api/auto-updater.md

@@ -68,7 +68,7 @@ Emitted when there is an error while updating.
 
 ### Event: 'checking-for-update'
 
-Emitted when checking if an update has started.
+Emitted when checking for an available update has started.
 
 ### Event: 'update-available'
 

docs/api/base-window.md

@@ -144,10 +144,24 @@ _**Note**: There is a subtle difference between the behaviors of `window.onbefor
 Emitted when the window is closed. After you have received this event you should
 remove the reference to the window and avoid using it any more.
 
+#### Event: 'query-session-end' _Windows_
+
+Returns:
+
+* `event` [WindowSessionEndEvent][window-session-end-event]
+
+Emitted when a session is about to end due to a shutdown, machine restart, or user log-off.
+Calling `event.preventDefault()` can delay the system shutdown, though it’s generally best
+to respect the user’s choice to end the session. However, you may choose to use it if
+ending the session puts the user at risk of losing data.
+
 #### Event: 'session-end' _Windows_
 
-Emitted when window session is going to end due to force shutdown or machine restart
-or session log off.
+Returns:
+
+* `event` [WindowSessionEndEvent][window-session-end-event]
+
+Emitted when a session is about to end due to a shutdown, machine restart, or user log-off. Once this event fires, there is no way to prevent the session from ending.
 
 #### Event: 'blur'
 
@@ -1429,3 +1443,4 @@ On Linux, the `symbolColor` is automatically calculated to have minimum accessib
 [vibrancy-docs]: https://developer.apple.com/documentation/appkit/nsvisualeffectview?preferredLanguage=objc
 [window-levels]: https://developer.apple.com/documentation/appkit/nswindow/level
 [event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
+[window-session-end-event]:../api/structures/window-session-end-event.md

docs/api/browser-window.md

@@ -207,10 +207,24 @@ _**Note**: There is a subtle difference between the behaviors of `window.onbefor
 Emitted when the window is closed. After you have received this event you should
 remove the reference to the window and avoid using it any more.
 
+#### Event: 'query-session-end' _Windows_
+
+Returns:
+
+* `event` [WindowSessionEndEvent][window-session-end-event]
+
+Emitted when a session is about to end due to a shutdown, machine restart, or user log-off.
+Calling `event.preventDefault()` can delay the system shutdown, though it’s generally best
+to respect the user’s choice to end the session. However, you may choose to use it if
+ending the session puts the user at risk of losing data.
+
 #### Event: 'session-end' _Windows_
 
-Emitted when window session is going to end due to force shutdown or machine restart
-or session log off.
+Returns:
+
+* `event` [WindowSessionEndEvent][window-session-end-event]
+
+Emitted when a session is about to end due to a shutdown, machine restart, or user log-off. Once this event fires, there is no way to prevent the session from ending.
 
 #### Event: 'unresponsive'
 
@@ -1549,13 +1563,17 @@ there is only one tab in the current window.
 
 Adds a window as a tab on this window, after the tab for the window instance.
 
-#### `win.setVibrancy(type)` _macOS_
+#### `win.setVibrancy(type[, options])` _macOS_
 
 * `type` string | null - Can be `titlebar`, `selection`, `menu`, `popover`, `sidebar`, `header`, `sheet`, `window`, `hud`, `fullscreen-ui`, `tooltip`, `content`, `under-window`, or `under-page`. See
   the [macOS documentation][vibrancy-docs] for more details.
+* `options` Object (optional)
+  * `animationDuration` number (optional) - if greater than zero, the change to vibrancy will be animated over the given duration (in milliseconds).
 
 Adds a vibrancy effect to the browser window. Passing `null` or an empty string
-will remove the vibrancy effect on the window.
+will remove the vibrancy effect on the window. The `animationDuration` parameter only
+ animates fading in or fading out the vibrancy effect. Animating between
+ different types of vibrancy is not supported.
 
 #### `win.setBackgroundMaterial(material)` _Windows_
 
@@ -1668,3 +1686,4 @@ On Linux, the `symbolColor` is automatically calculated to have minimum accessib
 [vibrancy-docs]: https://developer.apple.com/documentation/appkit/nsvisualeffectview?preferredLanguage=objc
 [window-levels]: https://developer.apple.com/documentation/appkit/nswindow/level
 [event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
+[window-session-end-event]:../api/structures/window-session-end-event.md

docs/api/command-line-switches.md

@@ -38,7 +38,7 @@ Without `*` prefix the URL has to match exactly.
 
 ### --disable-ntlm-v2
 
-Disables NTLM v2 for posix platforms, no effect elsewhere.
+Disables NTLM v2 for POSIX platforms, no effect elsewhere.
 
 ### --disable-http-cache
 
@@ -241,6 +241,13 @@ Force using discrete GPU when there are multiple GPUs available.
 
 Force using integrated GPU when there are multiple GPUs available.
 
+### --xdg-portal-required-version=`version`
+
+Sets the minimum required version of XDG portal implementation to `version`
+in order to use the portal backend for file dialogs on linux. File dialogs
+will fallback to using gtk or kde depending on the desktop environment when
+the required version is unavailable. Current default is set to `3`.
+
 ## Node.js Flags
 
 Electron supports some of the [CLI flags][node-cli] supported by Node.js.

docs/api/context-bridge.md

@@ -61,6 +61,20 @@ The `contextBridge` module has the following methods:
 * `apiKey` string - The key to inject the API onto `window` with.  The API will be accessible on `window[apiKey]`.
 * `api` any - Your API, more information on what this API can be and how it works is available below.
 
+### `contextBridge.executeInMainWorld(executionScript)` _Experimental_
+
+<!-- TODO(samuelmaddock): add generics to map the `args` types to the `func` params  -->
+
+* `executionScript` Object
+  * `func` (...args: any[]) => any - A JavaScript function to execute. This function will be serialized which means
+      that any bound parameters and execution context will be lost.
+  * `args` any[] (optional) - An array of arguments to pass to the provided function. These
+      arguments will be copied between worlds in accordance with
+      [the table of supported types.](#parameter--error--return-type-support)
+
+Returns `any` - A copy of the resulting value from executing the function in the main world.
+[Refer to the table](#parameter--error--return-type-support) on how values are copied between worlds.
+
 ## Usage
 
 ### API

docs/api/dialog.md

@@ -78,6 +78,11 @@ dialog.showOpenDialogSync(mainWindow, {
 })
 ```
 
+**Note:** On Linux `defaultPath` is not supported when using portal file chooser
+dialogs unless the portal backend is version 4 or higher. You can use `--xdg-portal-required-version`
+[command-line switch](./command-line-switches.md#--xdg-portal-required-versionversion)
+to force gtk or kde dialogs.
+
 ### `dialog.showOpenDialog([window, ]options)`
 
 * `window` [BaseWindow](base-window.md) (optional)
@@ -150,6 +155,11 @@ dialog.showOpenDialog(mainWindow, {
 })
 ```
 
+**Note:** On Linux `defaultPath` is not supported when using portal file chooser
+dialogs unless the portal backend is version 4 or higher. You can use `--xdg-portal-required-version`
+[command-line switch](./command-line-switches.md#--xdg-portal-required-versionversion)
+to force gtk or kde dialogs.
+
 ### `dialog.showSaveDialogSync([window, ]options)`
 
 * `window` [BaseWindow](base-window.md) (optional)
@@ -350,7 +360,7 @@ On Windows the options are more limited, due to the Win32 APIs used:
 
 ## Bookmarks array
 
-`showOpenDialog`, `showOpenDialogSync`, `showSaveDialog`, and `showSaveDialogSync` will return a `bookmarks` array.
+`showOpenDialog` and `showSaveDialog` resolve to an object with a `bookmarks` field. This field is an array of Base64 encoded strings that contain the [security scoped bookmark](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) data for the saved file. The `securityScopedBookmarks` option must be enabled for this to be present.
 
 | Build Type | securityScopedBookmarks boolean | Return Type | Return Value                   |
 |------------|---------------------------------|:-----------:|--------------------------------|

docs/api/ipc-main-service-worker.md

@@ -0,0 +1,75 @@
+## Class: IpcMainServiceWorker
+
+> Communicate asynchronously from the main process to service workers.
+
+Process: [Main](../glossary.md#main-process)
+
+> [!NOTE]
+> This API is a subtle variation of [`IpcMain`](ipc-main.md)—targeted for
+> communicating with service workers. For communicating with web frames,
+> consult the `IpcMain` documentation.
+
+<!-- TODO(samuelmaddock): refactor doc gen to allow generics to reduce duplication -->
+
+### Instance Methods
+
+#### `ipcMainServiceWorker.on(channel, listener)`
+
+* `channel` string
+* `listener` Function
+  * `event` [IpcMainServiceWorkerEvent][ipc-main-service-worker-event]
+  * `...args` any[]
+
+Listens to `channel`, when a new message arrives `listener` would be called with
+`listener(event, args...)`.
+
+#### `ipcMainServiceWorker.once(channel, listener)`
+
+* `channel` string
+* `listener` Function
+  * `event` [IpcMainServiceWorkerEvent][ipc-main-service-worker-event]
+  * `...args` any[]
+
+Adds a one time `listener` function for the event. This `listener` is invoked
+only the next time a message is sent to `channel`, after which it is removed.
+
+#### `ipcMainServiceWorker.removeListener(channel, listener)`
+
+* `channel` string
+* `listener` Function
+  * `...args` any[]
+
+Removes the specified `listener` from the listener array for the specified
+`channel`.
+
+#### `ipcMainServiceWorker.removeAllListeners([channel])`
+
+* `channel` string (optional)
+
+Removes listeners of the specified `channel`.
+
+#### `ipcMainServiceWorker.handle(channel, listener)`
+
+* `channel` string
+* `listener` Function\<Promise\<any\> | any\>
+  * `event` [IpcMainServiceWorkerInvokeEvent][ipc-main-service-worker-invoke-event]
+  * `...args` any[]
+
+#### `ipcMainServiceWorker.handleOnce(channel, listener)`
+
+* `channel` string
+* `listener` Function\<Promise\<any\> | any\>
+  * `event` [IpcMainServiceWorkerInvokeEvent][ipc-main-service-worker-invoke-event]
+  * `...args` any[]
+
+Handles a single `invoke`able IPC message, then removes the listener. See
+`ipcMainServiceWorker.handle(channel, listener)`.
+
+#### `ipcMainServiceWorker.removeHandler(channel)`
+
+* `channel` string
+
+Removes any handler for `channel`, if present.
+
+[ipc-main-service-worker-event]:../api/structures/ipc-main-service-worker-event.md
+[ipc-main-service-worker-invoke-event]:../api/structures/ipc-main-service-worker-invoke-event.md

docs/api/ipc-main.md

@@ -32,7 +32,7 @@ process, see [webContents.send][web-contents-send] for more information.
 
 ## Methods
 
-The `ipcMain` module has the following method to listen for events:
+The `ipcMain` module has the following methods to listen for events:
 
 ### `ipcMain.on(channel, listener)`
 
@@ -44,6 +44,16 @@ The `ipcMain` module has the following method to listen for events:
 Listens to `channel`, when a new message arrives `listener` would be called with
 `listener(event, args...)`.
 
+### `ipcMain.off(channel, listener)`
+
+* `channel` string
+* `listener` Function
+  * `event` [IpcMainEvent][ipc-main-event]
+  * `...args` any[]
+
+Removes the specified `listener` from the listener array for the specified
+`channel`.
+
 ### `ipcMain.once(channel, listener)`
 
 * `channel` string
@@ -54,20 +64,28 @@ Listens to `channel`, when a new message arrives `listener` would be called with
 Adds a one time `listener` function for the event. This `listener` is invoked
 only the next time a message is sent to `channel`, after which it is removed.
 
+### `ipcMain.addListener(channel, listener)`
+
+* `channel` string
+* `listener` Function
+  * `event` [IpcMainEvent][ipc-main-event]
+  * `...args` any[]
+
+Alias for [`ipcMain.on`](#ipcmainonchannel-listener).
+
 ### `ipcMain.removeListener(channel, listener)`
 
 * `channel` string
 * `listener` Function
   * `...args` any[]
 
-Removes the specified `listener` from the listener array for the specified
-`channel`.
+Alias for [`ipcMain.off`](#ipcmainoffchannel-listener).
 
 ### `ipcMain.removeAllListeners([channel])`
 
 * `channel` string (optional)
 
-Removes listeners of the specified `channel`.
+Removes all listeners from the specified `channel`. Removes all listeners from all channels if no channel is specified.
 
 ### `ipcMain.handle(channel, listener)`
 

docs/api/ipc-renderer.md

@@ -48,7 +48,8 @@ Listens to `channel`, when a new message arrives `listener` would be called with
   * `event` [IpcRendererEvent][ipc-renderer-event]
   * `...args` any[]
 
-Alias for [`ipcRenderer.removeListener`](#ipcrendererremovelistenerchannel-listener).
+Removes the specified `listener` from the listener array for the specified
+`channel`.
 
 ### `ipcRenderer.once(channel, listener)`
 
@@ -76,14 +77,13 @@ Alias for [`ipcRenderer.on`](#ipcrendereronchannel-listener).
   * `event` [IpcRendererEvent][ipc-renderer-event]
   * `...args` any[]
 
-Removes the specified `listener` from the listener array for the specified
-`channel`.
+Alias for [`ipcRenderer.off`](#ipcrendereroffchannel-listener).
 
-### `ipcRenderer.removeAllListeners(channel)`
+### `ipcRenderer.removeAllListeners([channel])`
 
-* `channel` string
+* `channel` string (optional)
 
-Removes all listeners, or those of the specified `channel`.
+Removes all listeners from the specified `channel`. Removes all listeners from all channels if no channel is specified.
 
 ### `ipcRenderer.send(channel, ...args)`
 

docs/api/menu.md

@@ -72,7 +72,7 @@ The `menu` object has the following instance methods:
 #### `menu.popup([options])`
 
 * `options` Object (optional)
-  * `window` [BrowserWindow](browser-window.md) (optional) - Default is the focused window.
+  * `window` [BaseWindow](base-window.md) (optional) - Default is the focused window.
   * `x` number (optional) - Default is the current mouse cursor position.
     Must be declared if `y` is declared.
   * `y` number (optional) - Default is the current mouse cursor position.
@@ -86,13 +86,13 @@ The `menu` object has the following instance methods:
     Can be `none`, `mouse`, `keyboard`, `touch`, `touchMenu`, `longPress`, `longTap`, `touchHandle`, `stylus`, `adjustSelection`, or `adjustSelectionReset`.
   * `callback` Function (optional) - Called when menu is closed.
 
-Pops up this menu as a context menu in the [`BrowserWindow`](browser-window.md).
+Pops up this menu as a context menu in the [`BaseWindow`](base-window.md).
 
-#### `menu.closePopup([browserWindow])`
+#### `menu.closePopup([window])`
 
-* `browserWindow` [BrowserWindow](browser-window.md) (optional) - Default is the focused window.
+* `window` [BaseWindow](base-window.md) (optional) - Default is the focused window.
 
-Closes the context menu in the `browserWindow`.
+Closes the context menu in the `window`.
 
 #### `menu.append(menuItem)`
 

docs/api/process.md

@@ -114,6 +114,7 @@ A `string` representing the current process's type, can be:
 
 * `browser` - The main process
 * `renderer` - A renderer process
+* `service-worker` - In a service worker
 * `worker` - In a web worker
 * `utility` - In a node process launched as a service
 

docs/api/service-worker-main.md

@@ -0,0 +1,75 @@
+# ServiceWorkerMain
+
+> An instance of a Service Worker representing a version of a script for a given scope.
+
+Process: [Main](../glossary.md#main-process)
+
+## Class: ServiceWorkerMain
+
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+
+### Instance Methods
+
+#### `serviceWorker.isDestroyed()` _Experimental_
+
+Returns `boolean` - Whether the service worker has been destroyed.
+
+#### `serviceWorker.send(channel, ...args)` _Experimental_
+
+- `channel` string
+- `...args` any[]
+
+Send an asynchronous message to the service worker process via `channel`, along with
+arguments. Arguments will be serialized with the [Structured Clone Algorithm][SCA],
+just like [`postMessage`][], so prototype chains will not be included.
+Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will throw an exception.
+
+The service worker process can handle the message by listening to `channel` with the
+[`ipcRenderer`](ipc-renderer.md) module.
+
+#### `serviceWorker.startTask()` _Experimental_
+
+Returns `Object`:
+
+- `end` Function - Method to call when the task has ended. If never called, the service won't terminate while otherwise idle.
+
+Initiate a task to keep the service worker alive until ended.
+
+```js
+const { session } = require('electron')
+const { serviceWorkers } = session.defaultSession
+
+async function fetchData () {}
+
+const versionId = 0
+const serviceWorker = serviceWorkers.getWorkerFromVersionID(versionId)
+
+serviceWorker?.ipc.handle('request-data', async () => {
+  // Keep service worker alive while fetching data
+  const task = serviceWorker.startTask()
+  try {
+    return await fetchData()
+  } finally {
+    // Mark task as ended to allow service worker to terminate when idle.
+    task.end()
+  }
+})
+```
+
+### Instance Properties
+
+#### `serviceWorker.ipc` _Readonly_ _Experimental_
+
+An [`IpcMainServiceWorker`](ipc-main-service-worker.md) instance scoped to the service worker.
+
+#### `serviceWorker.scope` _Readonly_ _Experimental_
+
+A `string` representing the scope URL of the service worker.
+
+#### `serviceWorker.versionId` _Readonly_ _Experimental_
+
+A `number` representing the ID of the specific version of the service worker script in its scope.
+
+[SCA]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
+[`postMessage`]: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage

docs/api/service-workers.md

@@ -56,6 +56,17 @@ Returns:
 
 Emitted when a service worker has been registered. Can occur after a call to [`navigator.serviceWorker.register('/sw.js')`](https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register) successfully resolves or when a Chrome extension is loaded.
 
+#### Event: 'running-status-changed' _Experimental_
+
+Returns:
+
+* `details` Event\<\>
+  * `versionId` number - ID of the updated service worker version
+  * `runningStatus` string - Running status.
+    Possible values include `starting`, `running`, `stopping`, or `stopped`.
+
+Emitted when a service worker's running status has changed.
+
 ### Instance Methods
 
 The following methods are available on instances of `ServiceWorkers`:
@@ -64,10 +75,55 @@ The following methods are available on instances of `ServiceWorkers`:
 
 Returns `Record<number, ServiceWorkerInfo>` - A [ServiceWorkerInfo](structures/service-worker-info.md) object where the keys are the service worker version ID and the values are the information about that service worker.
 
-#### `serviceWorkers.getFromVersionID(versionId)`
+#### `serviceWorkers.getInfoFromVersionID(versionId)`
 
-* `versionId` number
+* `versionId` number - ID of the service worker version
 
 Returns [`ServiceWorkerInfo`](structures/service-worker-info.md) - Information about this service worker
 
 If the service worker does not exist or is not running this method will throw an exception.
+
+#### `serviceWorkers.getFromVersionID(versionId)` _Deprecated_
+
+* `versionId` number - ID of the service worker version
+
+Returns [`ServiceWorkerInfo`](structures/service-worker-info.md) - Information about this service worker
+
+If the service worker does not exist or is not running this method will throw an exception.
+
+**Deprecated:** Use the new `serviceWorkers.getInfoFromVersionID` API.
+
+#### `serviceWorkers.getWorkerFromVersionID(versionId)` _Experimental_
+
+* `versionId` number - ID of the service worker version
+
+Returns [`ServiceWorkerMain | undefined`](service-worker-main.md) - Instance of the service worker associated with the given version ID.
+
+#### `serviceWorkers.startWorkerForScope(scope)` _Experimental_
+
+* `scope` string - The scope of the service worker to start.
+
+Returns `Promise<ServiceWorkerMain>` - Resolves with the service worker when it's started.
+
+Starts the service worker or does nothing if already running.
+
+```js
+const { app, session } = require('electron')
+const { serviceWorkers } = session.defaultSession
+
+// Collect service workers scopes
+const workerScopes = Object.values(serviceWorkers.getAllRunning()).map((info) => info.scope)
+
+app.on('browser-window-created', async (event, window) => {
+  for (const scope of workerScopes) {
+    try {
+      // Ensure worker is started and send message
+      const serviceWorker = await serviceWorkers.startWorkerForScope(scope)
+      serviceWorker.send('window-created', { windowId: window.id })
+    } catch (error) {
+      console.error(`Failed to start service worker for ${scope}`)
+      console.error(error)
+    }
+  }
+})
+```

docs/api/session.md

@@ -27,7 +27,8 @@ The `session` module has the following methods:
 
 * `partition` string
 * `options` Object (optional)
-  * `cache` boolean - Whether to enable cache.
+  * `cache` boolean - Whether to enable cache. Default is `true` unless the
+    [`--disable-http-cache` switch](command-line-switches.md#--disable-http-cache) is used.
 
 Returns `Session` - A session instance from `partition` string. When there is an existing
 `Session` with the same `partition`, it will be returned; otherwise a new
@@ -46,7 +47,8 @@ of an existing `Session` object.
 
 * `path` string
 * `options` Object (optional)
-  * `cache` boolean - Whether to enable cache.
+  * `cache` boolean - Whether to enable cache. Default is `true` unless the
+    [`--disable-http-cache` switch](command-line-switches.md#--disable-http-cache) is used.
 
 Returns `Session` - A session instance from the absolute path as specified by the `path`
 string. When there is an existing `Session` with the same absolute path, it
@@ -1328,18 +1330,44 @@ the initial state will be `interrupted`. The download will start only when the
 
 Returns `Promise<void>` - resolves when the session’s HTTP authentication cache has been cleared.
 
-#### `ses.setPreloads(preloads)`
+#### `ses.setPreloads(preloads)` _Deprecated_
 
 * `preloads` string[] - An array of absolute path to preload scripts
 
 Adds scripts that will be executed on ALL web contents that are associated with
 this session just before normal `preload` scripts run.
 
-#### `ses.getPreloads()`
+**Deprecated:** Use the new `ses.registerPreloadScript` API. This will overwrite any preload scripts
+registered for `service-worker` context types.
+
+#### `ses.getPreloads()` _Deprecated_
 
 Returns `string[]` an array of paths to preload scripts that have been
 registered.
 
+**Deprecated:** Use the new `ses.getPreloadScripts` API. This will only return preload script paths
+for `frame` context types.
+
+#### `ses.registerPreloadScript(script)`
+
+* `script` [PreloadScriptRegistration](structures/preload-script-registration.md) - Preload script
+
+Registers preload script that will be executed in its associated context type in this session. For
+`frame` contexts, this will run prior to any preload defined in the web preferences of a
+WebContents.
+
+Returns `string` - The ID of the registered preload script.
+
+#### `ses.unregisterPreloadScript(id)`
+
+* `id` string - Preload script ID
+
+Unregisters script.
+
+#### `ses.getPreloadScripts()`
+
+Returns [`PreloadScript[]`](structures/preload-script.md): An array of paths to preload scripts that have been registered.
+
 #### `ses.setCodeCachePath(path)`
 
 * `path` String - Absolute path to store the v8 generated JS code cache from the renderer.
@@ -1358,6 +1386,36 @@ specified when registering the protocol.
 
 Returns `Promise<void>` - resolves when the code cache clear operation is complete.
 
+#### `ses.getSharedDictionaryUsageInfo()`
+
+Returns `Promise<SharedDictionaryUsageInfo[]>` - an array of shared dictionary information entries in Chromium's networking service's storage.
+
+Shared dictionaries are used to power advanced compression of data sent over the wire, specifically with Brotli and ZStandard. You don't need to call any of the shared dictionary APIs in Electron to make use of this advanced web feature, but if you do, they allow deeper control and inspection of the shared dictionaries used during decompression.
+
+To get detailed information about a specific shared dictionary entry, call `getSharedDictionaryInfo(options)`.
+
+#### `ses.getSharedDictionaryInfo(options)`
+
+* `options` Object
+  * `frameOrigin` string - The origin of the frame where the request originates. It’s specific to the individual frame making the request and is defined by its scheme, host, and port. In practice, will look like a URL.
+  * `topFrameSite` string - The site of the top-level browsing context (the main frame or tab that contains the request). It’s less granular than `frameOrigin` and focuses on the broader "site" scope. In practice, will look like a URL.
+
+Returns `Promise<SharedDictionaryInfo[]>` - an array of shared dictionary information entries in Chromium's networking service's storage.
+
+To get information about all present shared dictionaries, call `getSharedDictionaryUsageInfo()`.
+
+#### `ses.clearSharedDictionaryCache()`
+
+Returns `Promise<void>` - resolves when the dictionary cache has been cleared, both in memory and on disk.
+
+#### `ses.clearSharedDictionaryCacheForIsolationKey(options)`
+
+* `options` Object
+  * `frameOrigin` string - The origin of the frame where the request originates. It’s specific to the individual frame making the request and is defined by its scheme, host, and port. In practice, will look like a URL.
+  * `topFrameSite` string - The site of the top-level browsing context (the main frame or tab that contains the request). It’s less granular than `frameOrigin` and focuses on the broader "site" scope. In practice, will look like a URL.
+
+Returns `Promise<void>` - resolves when the dictionary cache has been cleared for the specified isolation key, both in memory and on disk.
+
 #### `ses.setSpellCheckerEnabled(enable)`
 
 * `enable` boolean
@@ -1507,9 +1565,11 @@ session is persisted on disk.  For in memory sessions this returns `null`.
 #### `ses.clearData([options])`
 
 * `options` Object (optional)
-  * `dataTypes` String[] (optional) - The types of data to clear. By default, this will clear all types of data.
+  * `dataTypes` String[] (optional) - The types of data to clear. By default, this will clear all types of data. This
+    can potentially include data types not explicitly listed here. (See Chromium's
+    [`BrowsingDataRemover`][browsing-data-remover] for the full list.)
     * `backgroundFetch` - Background Fetch
-    * `cache` - Cache
+    * `cache` - Cache (includes `cachestorage` and `shadercache`)
     * `cookies` - Cookies
     * `downloads` - Downloads
     * `fileSystems` - File Systems
@@ -1533,7 +1593,9 @@ This method clears more types of data and is more thorough than the
 
 **Note:** Cookies are stored at a broader scope than origins. When removing cookies and filtering by `origins` (or `excludeOrigins`), the cookies will be removed at the [registrable domain](https://url.spec.whatwg.org/#host-registrable-domain) level. For example, clearing cookies for the origin `https://really.specific.origin.example.com/` will end up clearing all cookies for `example.com`. Clearing cookies for the origin `https://my.website.example.co.uk/` will end up clearing all cookies for `example.co.uk`.
 
-For more information, refer to Chromium's [`BrowsingDataRemover` interface](https://source.chromium.org/chromium/chromium/src/+/main:content/public/browser/browsing_data_remover.h).
+**Note:** Clearing cache data will also clear the shared dictionary cache. This means that any dictionaries used for compression may be reloaded after clearing the cache. If you wish to clear the shared dictionary cache but leave other cached data intact, you may want to use the `clearSharedDictionaryCache` method.
+
+For more information, refer to Chromium's [`BrowsingDataRemover` interface][browsing-data-remover].
 
 ### Instance Properties
 
@@ -1599,3 +1661,5 @@ app.whenReady().then(async () => {
   console.log('Net-logs written to', path)
 })
 ```
+
+[browsing-data-remover]: https://source.chromium.org/chromium/chromium/src/+/main:content/public/browser/browsing_data_remover.h

docs/api/shell.md

@@ -36,7 +36,7 @@ Open the given file in the desktop's default manner.
 
 ### `shell.openExternal(url[, options])`
 
-* `url` string - Max 2081 characters on windows.
+* `url` string - Max 2081 characters on Windows.
 * `options` Object (optional)
   * `activate` boolean (optional) _macOS_ - `true` to bring the opened application to the foreground. The default is `true`.
   * `workingDirectory` string (optional) _Windows_ - The working directory.

docs/api/structures/ipc-main-event.md

@@ -1,5 +1,6 @@
 # IpcMainEvent Object extends `Event`
 
+* `type` String - Possible values include `frame`
 * `processId` Integer - The internal ID of the renderer process that sent this message
 * `frameId` Integer - The ID of the renderer frame that sent this message
 * `returnValue` any - Set this to the value to be returned in a synchronous message

docs/api/structures/ipc-main-invoke-event.md

@@ -1,5 +1,6 @@
 # IpcMainInvokeEvent Object extends `Event`
 
+* `type` String - Possible values include `frame`
 * `processId` Integer - The internal ID of the renderer process that sent this message
 * `frameId` Integer - The ID of the renderer frame that sent this message
 * `sender` [WebContents](../web-contents.md) - Returns the `webContents` that sent the message

docs/api/structures/ipc-main-service-worker-event.md

@@ -0,0 +1,11 @@
+# IpcMainServiceWorkerEvent Object extends `Event`
+
+* `type` String - Possible values include `service-worker`.
+* `serviceWorker` [ServiceWorkerMain](../service-worker-main.md) _Readonly_ - The service worker that sent this message
+* `versionId` Number - The service worker version ID.
+* `session` Session - The [`Session`](../session.md) instance with which the event is associated.
+* `returnValue` any - Set this to the value to be returned in a synchronous message
+* `ports` [MessagePortMain](../message-port-main.md)[] - A list of MessagePorts that were transferred with this message
+* `reply` Function - A function that will send an IPC message to the renderer frame that sent the original message that you are currently handling.  You should use this method to "reply" to the sent message in order to guarantee the reply will go to the correct process and frame.
+  * `channel` string
+  * `...args` any[]

docs/api/structures/ipc-main-service-worker-invoke-event.md

@@ -0,0 +1,6 @@
+# IpcMainServiceWorkerInvokeEvent Object extends `Event`
+
+* `type` String - Possible values include `service-worker`.
+* `serviceWorker` [ServiceWorkerMain](../service-worker-main.md) _Readonly_ - The service worker that sent this message
+* `versionId` Number - The service worker version ID.
+* `session` Session - The [`Session`](../session.md) instance with which the event is associated.

docs/api/structures/preload-script-registration.md

@@ -0,0 +1,6 @@
+# PreloadScriptRegistration Object
+
+* `type` string - Context type where the preload script will be executed.
+  Possible values include `frame` or `service-worker`.
+* `id` string (optional) - Unique ID of preload script. Defaults to a random UUID.
+* `filePath` string - Path of the script file. Must be an absolute path.

docs/api/structures/preload-script.md

@@ -0,0 +1,6 @@
+# PreloadScript Object
+
+* `type` string - Context type where the preload script will be executed.
+  Possible values include `frame` or `service-worker`.
+* `id` string - Unique ID of preload script.
+* `filePath` string - Path of the script file. Must be an absolute path.

docs/api/structures/service-worker-info.md

@@ -3,3 +3,4 @@
 * `scriptUrl` string - The full URL to the script that this service worker runs
 * `scope` string - The base URL that this service worker is active for.
 * `renderProcessId` number - The virtual ID of the process that this service worker is running in.  This is not an OS level PID.  This aligns with the ID set used for `webContents.getProcessId()`.
+* `versionId` number - ID of the service worker version

docs/api/structures/shared-dictionary-info.md

@@ -0,0 +1,12 @@
+# SharedDictionaryInfo Object
+
+* `match` string - The matching path pattern for the dictionary which was declared in 'use-as-dictionary' response header's `match` option.
+* `matchDestinations` string[] - An array of matching destinations for the dictionary which was declared in 'use-as-dictionary' response header's `match-dest` option.
+* `id` string - The Id for the dictionary which was declared in 'use-as-dictionary' response header's `id` option.
+* `dictionaryUrl` string - URL of the dictionary.
+* `lastFetchTime` Date - The time of when the dictionary was received from the network layer.
+* `responseTime` Date - The time of when the dictionary was received from the server. For cached responses, this time could be "far" in the past.
+* `expirationDuration` number - The expiration time for the dictionary which was declared in 'use-as-dictionary' response header's `expires` option in seconds.
+* `lastUsedTime` Date - The time when the dictionary was last used.
+* `size` number - The amount of bytes stored for this shared dictionary information object in Chromium's internal storage (usually Sqlite).
+* `hash` string - The sha256 hash of the dictionary binary.

docs/api/structures/shared-dictionary-usage-info.md

@@ -0,0 +1,5 @@
+# SharedDictionaryUsageInfo Object
+
+* `frameOrigin` string - The origin of the frame where the request originates. It’s specific to the individual frame making the request and is defined by its scheme, host, and port. In practice, will look like a URL.
+* `topFrameSite` string - The site of the top-level browsing context (the main frame or tab that contains the request). It’s less granular than `frameOrigin` and focuses on the broader "site" scope. In practice, will look like a URL.
+* `totalSizeBytes` number - The amount of bytes stored for this shared dictionary information object in Chromium's internal storage (usually Sqlite).

docs/api/structures/window-session-end-event.md

@@ -0,0 +1,7 @@
+# WindowSessionEndEvent Object extends `Event`
+
+* `reasons` string[] - List of reasons for shutdown. Can be 'shutdown', 'close-app', 'critical', or 'logoff'.
+
+Unfortunately, Windows does not offer a way to differentiate between a shutdown and a reboot, meaning the 'shutdown'
+reason is triggered in both scenarios. For more details on the `WM_ENDSESSION` message and its associated reasons,
+refer to the [MSDN documentation](https://learn.microsoft.com/en-us/windows/win32/shutdown/wm-endsession).

docs/api/utility-process.md

@@ -37,7 +37,10 @@ Process: [Main](../glossary.md#main-process)<br />
     to load unsigned libraries. Unless you specifically need this capability, it is best to leave this disabled.
     Default is `false`.
   * `respondToAuthRequestsFromMainProcess` boolean (optional) - With this flag, all HTTP 401 and 407 network
-    requests created via the [net module](net.md) will allow responding to them via the [`app#login`](app.md#event-login) event in the main process instead of the default [`login`](client-request.md#event-login) event on the [`ClientRequest`](client-request.md) object.
+    requests created via the [net module](net.md) will allow responding to them via the
+    [`app#login`](app.md#event-login) event in the main process instead of the default
+    [`login`](client-request.md#event-login) event on the [`ClientRequest`](client-request.md) object. Default is
+    `false`.
 
 Returns [`UtilityProcess`](utility-process.md#class-utilityprocess)
 
@@ -92,6 +95,8 @@ the child process exits, then the value is `undefined` after the `exit` event is
 ```js
 const child = utilityProcess.fork(path.join(__dirname, 'test.js'))
 
+console.log(child.pid) // undefined
+
 child.on('spawn', () => {
   console.log(child.pid) // Integer
 })
@@ -101,6 +106,8 @@ child.on('exit', () => {
 })
 ```
 
+**Note:** You can use the `pid` to determine if the process is currently running.
+
 #### `child.stdout`
 
 A `NodeJS.ReadableStream | null` that represents the child process's stdout.
@@ -147,7 +154,7 @@ child process terminates.
 Returns:
 
 * `code` number - Contains the exit code for
-the process obtained from waitpid on posix, or GetExitCodeProcess on windows.
+the process obtained from waitpid on POSIX, or GetExitCodeProcess on Windows.
 
 Emitted after the child process ends.
 

docs/api/web-frame-main.md

@@ -142,6 +142,29 @@ ipcRenderer.on('port', (e, msg) => {
 })
 ```
 
+#### `frame.collectJavaScriptCallStack()` _Experimental_
+
+Returns `Promise<string> | Promise<void>` - A promise that resolves with the currently running JavaScript call
+stack. If no JavaScript runs in the frame, the promise will never resolve. In cases where the call stack is
+otherwise unable to be collected, it will return `undefined`.
+
+This can be useful to determine why the frame is unresponsive in cases where there's long-running JavaScript.
+For more information, see the [proposed Crash Reporting API.](https://wicg.github.io/crash-reporting/)
+
+```js
+const { app } = require('electron')
+
+app.commandLine.appendSwitch('enable-features', 'DocumentPolicyIncludeJSCallStacksInCrashReports')
+
+app.on('web-contents-created', (_, webContents) => {
+  webContents.on('unresponsive', async () => {
+    // Interrupt execution and collect call stack from unresponsive renderer
+    const callStack = await webContents.mainFrame.collectJavaScriptCallStack()
+    console.log('Renderer unresponsive\n', callStack)
+  })
+})
+```
+
 ### Instance Properties
 
 #### `frame.ipc` _Readonly_

docs/breaking-changes.md

@@ -12,6 +12,42 @@ This document uses the following convention to categorize breaking changes:
 * **Deprecated:** An API was marked as deprecated. The API will continue to function, but will emit a deprecation warning, and will be removed in a future release.
 * **Removed:** An API or feature was removed, and is no longer supported by Electron.
 
+## Planned Breaking API Changes (35.0)
+
+### Deprecated: `setPreloads`, `getPreloads` on `Session`
+
+`registerPreloadScript`, `unregisterPreloadScript`, and `getPreloadScripts` are introduced as a
+replacement for the deprecated methods. These new APIs allow third-party libraries to register
+preload scripts without replacing existing scripts. Also, the new `type` option allows for
+additional preload targets such as `service-worker`.
+
+```ts
+// Deprecated
+session.setPreloads([path.join(__dirname, 'preload.js')])
+
+// Replace with:
+session.registerPreloadScript({
+  type: 'frame',
+  id: 'app-preload',
+  filePath: path.join(__dirname, 'preload.js')
+})
+```
+
+### Deprecated: `getFromVersionID` on `session.serviceWorkers`
+
+The `session.serviceWorkers.fromVersionID(versionId)` API has been deprecated
+in favor of `session.serviceWorkers.getInfoFromVersionID(versionId)`. This was
+changed to make it more clear which object is returned with the introduction
+of the `session.serviceWorkers.getWorkerFromVersionID(versionId)` API.
+
+```js
+// Deprecated
+session.serviceWorkers.fromVersionID(versionId)
+
+// Replace with
+session.serviceWorkers.getInfoFromVersionID(versionId)
+```
+
 ## Planned Breaking API Changes (34.0)
 
 ### Deprecated: `level`, `message`, `line`, and `sourceId` arguments in `console-message` event on `WebContents`
@@ -128,14 +164,14 @@ The nonstandard `path` property of the Web `File` object was added in an early v
 ```js
 // Before (renderer)
 
-const file = document.querySelector('input[type=file]')
+const file = document.querySelector('input[type=file]').files[0]
 alert(`Uploaded file path was: ${file.path}`)
 ```
 
 ```js
 // After (renderer)
 
-const file = document.querySelector('input[type=file]')
+const file = document.querySelector('input[type=file]').files[0]
 electron.showFilePath(file)
 
 // (preload)

docs/fiddles/features/web-bluetooth/index.html

@@ -11,7 +11,7 @@
     <button id="clickme">Test Bluetooth</button>
     <button id="cancel">Cancel Bluetooth Request</button>
 
-    <p>Currently selected bluetooth device: <strong id="device-name""></strong></p>
+    <p>Currently selected bluetooth device: <strong id="device-name"></strong></p>
 
     <script src="./renderer.js"></script>
   </body>

docs/tutorial/code-signing.md

@@ -13,8 +13,7 @@ security warnings.
 
 Both Windows and macOS prevent users from running unsigned applications. It is
 possible to distribute applications without codesigning them - but in order to
-run them, users need to go through multiple advanced and manual steps to run
-them.
+run them, users need to go through multiple advanced and manual steps.
 
 If you are building an Electron app that you intend to package and distribute,
 it should be code signed. The Electron ecosystem tooling makes codesigning your

docs/tutorial/electron-timelines.md

@@ -9,10 +9,10 @@ check out our [Electron Versioning](./electron-versioning.md) doc.
 
 | Electron | Alpha | Beta | Stable | EOL | Chrome | Node | Supported |
 | ------- | ----- | ------- | ------ | ------ | ---- | ---- | ---- |
-| 34.0.0 |  2024-Oct-17 | 2024-Nov-13 | 2024-Jan-07 | 2025-Jun-24 | M132 | TBD | ✅ |
+| 34.0.0 |  2024-Oct-17 | 2024-Nov-13 | 2025-Jan-14 | 2025-Jun-24 | M132 | TBD | ✅ |
 | 33.0.0 |  2024-Aug-22 | 2024-Sep-18 | 2024-Oct-15 | 2025-Apr-29 | M130 | v20.18 | ✅ |
 | 32.0.0 |  2024-Jun-14 | 2024-Jul-24 | 2024-Aug-20 | 2025-Mar-04 | M128 | v20.16 | ✅ |
-| 31.0.0 |  2024-Apr-18 | 2024-May-15 | 2024-Jun-11 | 2025-Jan-07 | M126 | v20.14 | ✅ |
+| 31.0.0 |  2024-Apr-18 | 2024-May-15 | 2024-Jun-11 | 2025-Jan-14 | M126 | v20.14 | ✅ |
 | 30.0.0 |  2024-Feb-22 | 2024-Mar-20 | 2024-Apr-16 | 2024-Oct-15 | M124 | v20.11 | 🚫 |
 | 29.0.0 |  2023-Dec-07 | 2024-Jan-24 | 2024-Feb-20 | 2024-Aug-20 | M122 | v20.9 | 🚫 |
 | 28.0.0 |  2023-Oct-11 | 2023-Nov-06 | 2023-Dec-05 | 2024-Jun-11 | M120 | v18.18 | 🚫 |

docs/tutorial/fuses.md

@@ -68,6 +68,10 @@ The onlyLoadAppFromAsar fuse changes the search system that Electron uses to loc
 
 The loadBrowserProcessSpecificV8Snapshot fuse changes which V8 snapshot file is used for the browser process.  By default Electron's processes will all use the same V8 snapshot file.  When this fuse is enabled the browser process uses the file called `browser_v8_context_snapshot.bin` for its V8 snapshot. The other processes will use the V8 snapshot file that they normally do.
 
+V8 snapshots can be useful to improve app startup performance. V8 lets you take snapshots of initialized heaps and then load them back in to avoid the cost of initializing the heap.
+
+Using separate snapshots for renderer processes and the main process can improve security, especially to make sure that the renderer doesn't use a snapshot with `nodeIntegration` enabled. See [#35170](https://github.com/electron/electron/issues/35170) for details.
+
 ### `grantFileProtocolExtraPrivileges`
 
 **Default:** Enabled

docs/tutorial/multithreading.md

@@ -42,7 +42,7 @@ safe.
 The only way to load a native module safely for now, is to make sure the app
 loads no native modules after the Web Workers get started.
 
-```js @ts-expect-error=[1]
+```js
 process.dlopen = () => {
   throw new Error('Load native module is not safe')
 }

filenames.auto.gni

@@ -25,6 +25,7 @@ auto_filenames = {
     "docs/api/global-shortcut.md",
     "docs/api/in-app-purchase.md",
     "docs/api/incoming-message.md",
+    "docs/api/ipc-main-service-worker.md",
     "docs/api/ipc-main.md",
     "docs/api/ipc-renderer.md",
     "docs/api/menu-item.md",
@@ -45,6 +46,7 @@ auto_filenames = {
     "docs/api/push-notifications.md",
     "docs/api/safe-storage.md",
     "docs/api/screen.md",
+    "docs/api/service-worker-main.md",
     "docs/api/service-workers.md",
     "docs/api/session.md",
     "docs/api/share-menu.md",
@@ -94,6 +96,8 @@ auto_filenames = {
     "docs/api/structures/input-event.md",
     "docs/api/structures/ipc-main-event.md",
     "docs/api/structures/ipc-main-invoke-event.md",
+    "docs/api/structures/ipc-main-service-worker-event.md",
+    "docs/api/structures/ipc-main-service-worker-invoke-event.md",
     "docs/api/structures/ipc-renderer-event.md",
     "docs/api/structures/jump-list-category.md",
     "docs/api/structures/jump-list-item.md",
@@ -114,6 +118,8 @@ auto_filenames = {
     "docs/api/structures/permission-request.md",
     "docs/api/structures/point.md",
     "docs/api/structures/post-body.md",
+    "docs/api/structures/preload-script-registration.md",
+    "docs/api/structures/preload-script.md",
     "docs/api/structures/printer-info.md",
     "docs/api/structures/process-memory-info.md",
     "docs/api/structures/process-metric.md",
@@ -133,6 +139,8 @@ auto_filenames = {
     "docs/api/structures/segmented-control-segment.md",
     "docs/api/structures/serial-port.md",
     "docs/api/structures/service-worker-info.md",
+    "docs/api/structures/shared-dictionary-info.md",
+    "docs/api/structures/shared-dictionary-usage-info.md",
     "docs/api/structures/shared-worker-info.md",
     "docs/api/structures/sharing-item.md",
     "docs/api/structures/shortcut-details.md",
@@ -151,6 +159,7 @@ auto_filenames = {
     "docs/api/structures/web-request-filter.md",
     "docs/api/structures/web-source.md",
     "docs/api/structures/window-open-handler-response.md",
+    "docs/api/structures/window-session-end-event.md",
   ]
 
   sandbox_bundle_deps = [
@@ -166,6 +175,8 @@ auto_filenames = {
     "lib/renderer/api/web-utils.ts",
     "lib/renderer/common-init.ts",
     "lib/renderer/inspector.ts",
+    "lib/renderer/ipc-native-setup.ts",
+    "lib/renderer/ipc-renderer-bindings.ts",
     "lib/renderer/ipc-renderer-internal-utils.ts",
     "lib/renderer/ipc-renderer-internal.ts",
     "lib/renderer/security-warnings.ts",
@@ -180,6 +191,8 @@ auto_filenames = {
     "lib/sandboxed_renderer/api/exports/electron.ts",
     "lib/sandboxed_renderer/api/module-list.ts",
     "lib/sandboxed_renderer/init.ts",
+    "lib/sandboxed_renderer/pre-init.ts",
+    "lib/sandboxed_renderer/preload.ts",
     "package.json",
     "tsconfig.electron.json",
     "tsconfig.json",
@@ -236,6 +249,7 @@ auto_filenames = {
     "lib/browser/api/push-notifications.ts",
     "lib/browser/api/safe-storage.ts",
     "lib/browser/api/screen.ts",
+    "lib/browser/api/service-worker-main.ts",
     "lib/browser/api/session.ts",
     "lib/browser/api/share-menu.ts",
     "lib/browser/api/system-preferences.ts",
@@ -252,6 +266,7 @@ auto_filenames = {
     "lib/browser/guest-view-manager.ts",
     "lib/browser/guest-window-manager.ts",
     "lib/browser/init.ts",
+    "lib/browser/ipc-dispatch.ts",
     "lib/browser/ipc-main-impl.ts",
     "lib/browser/ipc-main-internal-utils.ts",
     "lib/browser/ipc-main-internal.ts",
@@ -296,6 +311,8 @@ auto_filenames = {
     "lib/renderer/common-init.ts",
     "lib/renderer/init.ts",
     "lib/renderer/inspector.ts",
+    "lib/renderer/ipc-native-setup.ts",
+    "lib/renderer/ipc-renderer-bindings.ts",
     "lib/renderer/ipc-renderer-internal-utils.ts",
     "lib/renderer/ipc-renderer-internal.ts",
     "lib/renderer/security-warnings.ts",
@@ -330,6 +347,7 @@ auto_filenames = {
     "lib/renderer/api/module-list.ts",
     "lib/renderer/api/web-frame.ts",
     "lib/renderer/api/web-utils.ts",
+    "lib/renderer/ipc-renderer-bindings.ts",
     "lib/renderer/ipc-renderer-internal-utils.ts",
     "lib/renderer/ipc-renderer-internal.ts",
     "lib/worker/init.ts",
@@ -370,4 +388,27 @@ auto_filenames = {
     "typings/internal-ambient.d.ts",
     "typings/internal-electron.d.ts",
   ]
+
+  preload_realm_bundle_deps = [
+    "lib/common/api/native-image.ts",
+    "lib/common/define-properties.ts",
+    "lib/common/ipc-messages.ts",
+    "lib/common/webpack-globals-provider.ts",
+    "lib/preload_realm/api/exports/electron.ts",
+    "lib/preload_realm/api/module-list.ts",
+    "lib/preload_realm/init.ts",
+    "lib/renderer/api/context-bridge.ts",
+    "lib/renderer/api/ipc-renderer.ts",
+    "lib/renderer/ipc-native-setup.ts",
+    "lib/renderer/ipc-renderer-bindings.ts",
+    "lib/renderer/ipc-renderer-internal-utils.ts",
+    "lib/renderer/ipc-renderer-internal.ts",
+    "lib/sandboxed_renderer/pre-init.ts",
+    "lib/sandboxed_renderer/preload.ts",
+    "package.json",
+    "tsconfig.electron.json",
+    "tsconfig.json",
+    "typings/internal-ambient.d.ts",
+    "typings/internal-electron.d.ts",
+  ]
 }

filenames.gni

@@ -304,6 +304,8 @@ filenames = {
     "shell/browser/api/electron_api_screen.h",
     "shell/browser/api/electron_api_service_worker_context.cc",
     "shell/browser/api/electron_api_service_worker_context.h",
+    "shell/browser/api/electron_api_service_worker_main.cc",
+    "shell/browser/api/electron_api_service_worker_main.h",
     "shell/browser/api/electron_api_session.cc",
     "shell/browser/api/electron_api_session.h",
     "shell/browser/api/electron_api_system_preferences.cc",
@@ -330,6 +332,7 @@ filenames = {
     "shell/browser/api/gpu_info_enumerator.h",
     "shell/browser/api/gpuinfo_manager.cc",
     "shell/browser/api/gpuinfo_manager.h",
+    "shell/browser/api/ipc_dispatcher.h",
     "shell/browser/api/message_port.cc",
     "shell/browser/api/message_port.h",
     "shell/browser/api/process_metric.cc",
@@ -361,6 +364,8 @@ filenames = {
     "shell/browser/draggable_region_provider.h",
     "shell/browser/electron_api_ipc_handler_impl.cc",
     "shell/browser/electron_api_ipc_handler_impl.h",
+    "shell/browser/electron_api_sw_ipc_handler_impl.cc",
+    "shell/browser/electron_api_sw_ipc_handler_impl.h",
     "shell/browser/electron_autofill_driver.cc",
     "shell/browser/electron_autofill_driver.h",
     "shell/browser/electron_autofill_driver_factory.cc",
@@ -482,6 +487,7 @@ filenames = {
     "shell/browser/osr/osr_web_contents_view.h",
     "shell/browser/plugins/plugin_utils.cc",
     "shell/browser/plugins/plugin_utils.h",
+    "shell/browser/preload_script.h",
     "shell/browser/protocol_registry.cc",
     "shell/browser/protocol_registry.h",
     "shell/browser/relauncher.cc",
@@ -507,6 +513,10 @@ filenames = {
     "shell/browser/ui/devtools_manager_delegate.h",
     "shell/browser/ui/devtools_ui.cc",
     "shell/browser/ui/devtools_ui.h",
+    "shell/browser/ui/devtools_ui_bundle_data_source.cc",
+    "shell/browser/ui/devtools_ui_bundle_data_source.h",
+    "shell/browser/ui/devtools_ui_theme_data_source.cc",
+    "shell/browser/ui/devtools_ui_theme_data_source.h",
     "shell/browser/ui/drag_util.cc",
     "shell/browser/ui/drag_util.h",
     "shell/browser/ui/electron_menu_model.cc",
@@ -617,6 +627,8 @@ filenames = {
     "shell/common/gin_converters/osr_converter.cc",
     "shell/common/gin_converters/osr_converter.h",
     "shell/common/gin_converters/serial_port_info_converter.h",
+    "shell/common/gin_converters/service_worker_converter.cc",
+    "shell/common/gin_converters/service_worker_converter.h",
     "shell/common/gin_converters/std_converter.h",
     "shell/common/gin_converters/time_converter.cc",
     "shell/common/gin_converters/time_converter.h",
@@ -657,6 +669,8 @@ filenames = {
     "shell/common/gin_helper/pinnable.h",
     "shell/common/gin_helper/promise.cc",
     "shell/common/gin_helper/promise.h",
+    "shell/common/gin_helper/reply_channel.cc",
+    "shell/common/gin_helper/reply_channel.h",
     "shell/common/gin_helper/trackable_object.cc",
     "shell/common/gin_helper/trackable_object.h",
     "shell/common/gin_helper/wrappable.cc",
@@ -675,7 +689,6 @@ filenames = {
     "shell/common/node_includes.h",
     "shell/common/node_util.cc",
     "shell/common/node_util.h",
-    "shell/common/options_switches.cc",
     "shell/common/options_switches.h",
     "shell/common/platform_util.cc",
     "shell/common/platform_util.h",
@@ -707,14 +720,22 @@ filenames = {
     "shell/renderer/electron_api_service_impl.h",
     "shell/renderer/electron_autofill_agent.cc",
     "shell/renderer/electron_autofill_agent.h",
+    "shell/renderer/electron_ipc_native.cc",
+    "shell/renderer/electron_ipc_native.h",
     "shell/renderer/electron_render_frame_observer.cc",
     "shell/renderer/electron_render_frame_observer.h",
     "shell/renderer/electron_renderer_client.cc",
     "shell/renderer/electron_renderer_client.h",
     "shell/renderer/electron_sandboxed_renderer_client.cc",
     "shell/renderer/electron_sandboxed_renderer_client.h",
+    "shell/renderer/preload_realm_context.cc",
+    "shell/renderer/preload_realm_context.h",
+    "shell/renderer/preload_utils.cc",
+    "shell/renderer/preload_utils.h",
     "shell/renderer/renderer_client_base.cc",
     "shell/renderer/renderer_client_base.h",
+    "shell/renderer/service_worker_data.cc",
+    "shell/renderer/service_worker_data.h",
     "shell/renderer/web_worker_observer.cc",
     "shell/renderer/web_worker_observer.h",
     "shell/services/node/node_service.cc",

lib/browser/api/browser-window.ts

@@ -37,6 +37,33 @@ BrowserWindow.prototype._init = function (this: BWT) {
     app.emit('browser-window-focus', event, this);
   });
 
+  let unresponsiveEvent: NodeJS.Timeout | null = null;
+  const emitUnresponsiveEvent = () => {
+    unresponsiveEvent = null;
+    if (!this.isDestroyed() && this.isEnabled()) { this.emit('unresponsive'); }
+  };
+  this.webContents.on('unresponsive', () => {
+    if (!unresponsiveEvent) { unresponsiveEvent = setTimeout(emitUnresponsiveEvent, 50); }
+  });
+  this.webContents.on('responsive', () => {
+    if (unresponsiveEvent) {
+      clearTimeout(unresponsiveEvent);
+      unresponsiveEvent = null;
+    }
+    this.emit('responsive');
+  });
+  this.on('close', (event) => {
+    queueMicrotask(() => {
+      if (!unresponsiveEvent && !event.defaultPrevented) {
+        unresponsiveEvent = setTimeout(emitUnresponsiveEvent, 5000);
+      }
+    });
+  });
+  this.webContents.on('destroyed', () => {
+    if (unresponsiveEvent) clearTimeout(unresponsiveEvent);
+    unresponsiveEvent = null;
+  });
+
   // Subscribe to visibilityState changes and pass to renderer process.
   let isVisible = this.isVisible() && !this.isMinimized();
   const visibilityChanged = () => {

lib/browser/api/module-list.ts

@@ -29,6 +29,7 @@ export const browserModuleList: ElectronInternal.ModuleEntry[] = [
   { name: 'protocol', loader: () => require('./protocol') },
   { name: 'safeStorage', loader: () => require('./safe-storage') },
   { name: 'screen', loader: () => require('./screen') },
+  { name: 'ServiceWorkerMain', loader: () => require('./service-worker-main') },
   { name: 'session', loader: () => require('./session') },
   { name: 'ShareMenu', loader: () => require('./share-menu') },
   { name: 'systemPreferences', loader: () => require('./system-preferences') },

lib/browser/api/service-worker-main.ts

@@ -0,0 +1,39 @@
+import { IpcMainImpl } from '@electron/internal/browser/ipc-main-impl';
+
+const { ServiceWorkerMain } = process._linkedBinding('electron_browser_service_worker_main');
+
+Object.defineProperty(ServiceWorkerMain.prototype, 'ipc', {
+  get () {
+    const ipc = new IpcMainImpl();
+    Object.defineProperty(this, 'ipc', { value: ipc });
+    return ipc;
+  }
+});
+
+ServiceWorkerMain.prototype.send = function (channel, ...args) {
+  if (typeof channel !== 'string') {
+    throw new TypeError('Missing required channel argument');
+  }
+
+  try {
+    return this._send(false /* internal */, channel, args);
+  } catch (e) {
+    console.error('Error sending from ServiceWorkerMain: ', e);
+  }
+};
+
+ServiceWorkerMain.prototype.startTask = function () {
+  // TODO(samuelmaddock): maybe make timeout configurable in the future
+  const hasTimeout = false;
+  const { id, ok } = this._startExternalRequest(hasTimeout);
+
+  if (!ok) {
+    throw new Error('Unable to start service worker task.');
+  }
+
+  return {
+    end: () => this._finishExternalRequest(id)
+  };
+};
+
+module.exports = ServiceWorkerMain;

lib/browser/api/session.ts

@@ -1,4 +1,6 @@
 import { fetchWithSession } from '@electron/internal/browser/api/net-fetch';
+import { addIpcDispatchListeners } from '@electron/internal/browser/ipc-dispatch';
+import * as deprecate from '@electron/internal/common/deprecate';
 
 import { net } from 'electron/main';
 
@@ -20,6 +22,10 @@ Object.defineProperty(systemPickerVideoSource, 'id', {
 systemPickerVideoSource.name = '';
 Object.freeze(systemPickerVideoSource);
 
+Session.prototype._init = function () {
+  addIpcDispatchListeners(this, this.serviceWorkers);
+};
+
 Session.prototype.fetch = function (input: RequestInfo, init?: RequestInit) {
   return fetchWithSession(input, init, this, net.request);
 };
@@ -36,6 +42,31 @@ Session.prototype.setDisplayMediaRequestHandler = function (handler, opts) {
   }, opts);
 };
 
+const getPreloadsDeprecated = deprecate.warnOnce('session.getPreloads', 'session.getPreloadScripts');
+Session.prototype.getPreloads = function () {
+  getPreloadsDeprecated();
+  return this.getPreloadScripts()
+    .filter((script) => script.type === 'frame')
+    .map((script) => script.filePath);
+};
+
+const setPreloadsDeprecated = deprecate.warnOnce('session.setPreloads', 'session.registerPreloadScript');
+Session.prototype.setPreloads = function (preloads) {
+  setPreloadsDeprecated();
+  this.getPreloadScripts()
+    .filter((script) => script.type === 'frame')
+    .forEach((script) => {
+      this.unregisterPreloadScript(script.id);
+    });
+  preloads.map(filePath => ({
+    type: 'frame',
+    filePath,
+    _deprecated: true
+  }) as Electron.PreloadScriptRegistration).forEach(script => {
+    this.registerPreloadScript(script);
+  });
+};
+
 export default {
   fromPartition,
   fromPath,

lib/browser/api/web-contents.ts

@@ -514,9 +514,9 @@ WebContents.prototype.canGoForward = function () {
 };
 
 const canGoToOffsetDeprecated = deprecate.warnOnce('webContents.canGoToOffset', 'webContents.navigationHistory.canGoToOffset');
-WebContents.prototype.canGoToOffset = function () {
+WebContents.prototype.canGoToOffset = function (index: number) {
   canGoToOffsetDeprecated();
-  return this._canGoToOffset();
+  return this._canGoToOffset(index);
 };
 
 const clearHistoryDeprecated = deprecate.warnOnce('webContents.clearHistory', 'webContents.navigationHistory.clear');
@@ -920,6 +920,13 @@ WebContents.prototype._init = function () {
     this.emit('console-message', event, (event as any)._level, event.message, event.lineNumber, event.sourceId);
   });
 
+  this.on('-unresponsive' as any, (event: Electron.Event<any>) => {
+    const shouldEmit = !event.shouldIgnore && event.visible && event.rendererInitialized;
+    if (shouldEmit) {
+      this.emit('unresponsive', event);
+    }
+  });
+
   app.emit('web-contents-created', { sender: this, preventDefault () {}, get defaultPrevented () { return false; } }, this);
 
   // Properties

lib/browser/devtools.ts

@@ -69,6 +69,7 @@ const assertChromeDevTools = function (contents: Electron.WebContents, api: stri
 
 ipcMainInternal.handle(IPC_MESSAGES.INSPECTOR_CONTEXT_MENU, function (event, items: ContextMenuItem[], isEditMenu: boolean) {
   return new Promise<number | void>(resolve => {
+    if (event.type !== 'frame') return;
     assertChromeDevTools(event.sender, 'window.InspectorFrontendHost.showContextMenuAtPoint()');
 
     const template = isEditMenu ? getEditMenuItems() : convertToMenuTemplate(items, resolve);
@@ -80,6 +81,7 @@ ipcMainInternal.handle(IPC_MESSAGES.INSPECTOR_CONTEXT_MENU, function (event, ite
 });
 
 ipcMainInternal.handle(IPC_MESSAGES.INSPECTOR_SELECT_FILE, async function (event) {
+  if (event.type !== 'frame') return [];
   assertChromeDevTools(event.sender, 'window.UI.createFileSelectorElement()');
 
   const result = await dialog.showOpenDialog({});
@@ -92,6 +94,7 @@ ipcMainInternal.handle(IPC_MESSAGES.INSPECTOR_SELECT_FILE, async function (event
 });
 
 ipcMainUtils.handleSync(IPC_MESSAGES.INSPECTOR_CONFIRM, async function (event, message: string = '', title: string = '') {
+  if (event.type !== 'frame') return;
   assertChromeDevTools(event.sender, 'window.confirm()');
 
   const options = {

lib/browser/guest-view-manager.ts

@@ -267,9 +267,10 @@ const isWebViewTagEnabled = function (contents: Electron.WebContents) {
 };
 
 const makeSafeHandler = function<Event extends { sender: Electron.WebContents }> (channel: string, handler: (event: Event, ...args: any[]) => any) {
-  return (event: Event, ...args: any[]) => {
+  return (event: Electron.IpcMainInvokeEvent | Electron.IpcMainServiceWorkerInvokeEvent, ...args: any[]) => {
+    if (event.type !== 'frame') return;
     if (isWebViewTagEnabled(event.sender)) {
-      return handler(event, ...args);
+      return handler(event as unknown as Event, ...args);
     } else {
       console.error(`<webview> IPC message ${channel} sent by WebContents with <webview> disabled (${event.sender.id})`);
       throw new Error('<webview> disabled');
@@ -281,7 +282,7 @@ const handleMessage = function (channel: string, handler: (event: Electron.IpcMa
   ipcMainInternal.handle(channel, makeSafeHandler(channel, handler));
 };
 
-const handleMessageSync = function (channel: string, handler: (event: ElectronInternal.IpcMainInternalEvent, ...args: any[]) => any) {
+const handleMessageSync = function (channel: string, handler: (event: { sender: Electron.WebContents }, ...args: any[]) => any) {
   ipcMainUtils.handleSync(channel, makeSafeHandler(channel, handler));
 };
 
@@ -294,8 +295,10 @@ handleMessageSync(IPC_MESSAGES.GUEST_VIEW_MANAGER_DETACH_GUEST, function (event,
 });
 
 // this message is sent by the actual <webview>
-ipcMainInternal.on(IPC_MESSAGES.GUEST_VIEW_MANAGER_FOCUS_CHANGE, function (event: ElectronInternal.IpcMainInternalEvent, focus: boolean) {
-  event.sender.emit('-focus-change', {}, focus);
+ipcMainInternal.on(IPC_MESSAGES.GUEST_VIEW_MANAGER_FOCUS_CHANGE, function (event, focus: boolean) {
+  if (event.type === 'frame') {
+    event.sender.emit('-focus-change', {}, focus);
+  }
 });
 
 handleMessage(IPC_MESSAGES.GUEST_VIEW_MANAGER_CALL, function (event, guestInstanceId: number, method: string, args: any[]) {

lib/browser/init.ts

@@ -146,6 +146,9 @@ require('@electron/internal/browser/devtools');
 // Load protocol module to ensure it is populated on app ready
 require('@electron/internal/browser/api/protocol');
 
+// Load service-worker-main module to ensure it is populated on app ready
+require('@electron/internal/browser/api/service-worker-main');
+
 // Load web-contents module to ensure it is populated on app ready
 require('@electron/internal/browser/api/web-contents');
 

lib/browser/ipc-dispatch.ts

@@ -0,0 +1,91 @@
+import { ipcMainInternal } from '@electron/internal/browser/ipc-main-internal';
+import { MessagePortMain } from '@electron/internal/browser/message-port-main';
+
+import type { ServiceWorkerMain } from 'electron/main';
+
+const v8Util = process._linkedBinding('electron_common_v8_util');
+
+const addReturnValueToEvent = (event: Electron.IpcMainEvent | Electron.IpcMainServiceWorkerEvent) => {
+  Object.defineProperty(event, 'returnValue', {
+    set: (value) => event._replyChannel.sendReply(value),
+    get: () => {}
+  });
+};
+
+/**
+ * Listens for IPC dispatch events on `api`.
+ *
+ * NOTE: Currently this only supports dispatching IPCs for ServiceWorkerMain.
+ */
+export function addIpcDispatchListeners (api: NodeJS.EventEmitter, serviceWorkers: Electron.ServiceWorkers) {
+  const getServiceWorkerFromEvent = (event: Electron.IpcMainServiceWorkerEvent | Electron.IpcMainServiceWorkerInvokeEvent): ServiceWorkerMain | undefined => {
+    return serviceWorkers._getWorkerFromVersionIDIfExists(event.versionId);
+  };
+  const addServiceWorkerPropertyToEvent = (event: Electron.IpcMainServiceWorkerEvent | Electron.IpcMainServiceWorkerInvokeEvent) => {
+    Object.defineProperty(event, 'serviceWorker', {
+      get: () => serviceWorkers.getWorkerFromVersionID(event.versionId)
+    });
+  };
+
+  api.on('-ipc-message' as any, function (event: Electron.IpcMainEvent | Electron.IpcMainServiceWorkerEvent, channel: string, args: any[]) {
+    const internal = v8Util.getHiddenValue<boolean>(event, 'internal');
+
+    if (internal) {
+      ipcMainInternal.emit(channel, event, ...args);
+    } else if (event.type === 'service-worker') {
+      addServiceWorkerPropertyToEvent(event);
+      getServiceWorkerFromEvent(event)?.ipc.emit(channel, event, ...args);
+    }
+  } as any);
+
+  api.on('-ipc-invoke' as any, async function (event: Electron.IpcMainInvokeEvent | Electron.IpcMainServiceWorkerInvokeEvent, channel: string, args: any[]) {
+    const internal = v8Util.getHiddenValue<boolean>(event, 'internal');
+
+    const replyWithResult = (result: any) => event._replyChannel.sendReply({ result });
+    const replyWithError = (error: Error) => {
+      console.error(`Error occurred in handler for '${channel}':`, error);
+      event._replyChannel.sendReply({ error: error.toString() });
+    };
+
+    const targets: (Electron.IpcMainServiceWorker | ElectronInternal.IpcMainInternal | undefined)[] = [];
+
+    if (internal) {
+      targets.push(ipcMainInternal);
+    } else if (event.type === 'service-worker') {
+      addServiceWorkerPropertyToEvent(event);
+      const workerIpc = getServiceWorkerFromEvent(event)?.ipc;
+      targets.push(workerIpc);
+    }
+
+    const target = targets.find(target => (target as any)?._invokeHandlers.has(channel));
+    if (target) {
+      const handler = (target as any)._invokeHandlers.get(channel);
+      try {
+        replyWithResult(await Promise.resolve(handler(event, ...args)));
+      } catch (err) {
+        replyWithError(err as Error);
+      }
+    } else {
+      replyWithError(new Error(`No handler registered for '${channel}'`));
+    }
+  } as any);
+
+  api.on('-ipc-message-sync' as any, function (event: Electron.IpcMainEvent | Electron.IpcMainServiceWorkerEvent, channel: string, args: any[]) {
+    const internal = v8Util.getHiddenValue<boolean>(event, 'internal');
+    addReturnValueToEvent(event);
+    if (internal) {
+      ipcMainInternal.emit(channel, event, ...args);
+    } else if (event.type === 'service-worker') {
+      addServiceWorkerPropertyToEvent(event);
+      getServiceWorkerFromEvent(event)?.ipc.emit(channel, event, ...args);
+    }
+  } as any);
+
+  api.on('-ipc-ports' as any, function (event: Electron.IpcMainEvent | Electron.IpcMainServiceWorkerEvent, channel: string, message: any, ports: any[]) {
+    event.ports = ports.map(p => new MessagePortMain(p));
+    if (event.type === 'service-worker') {
+      addServiceWorkerPropertyToEvent(event);
+      getServiceWorkerFromEvent(event)?.ipc.emit(channel, event, message);
+    }
+  } as any);
+}

lib/browser/ipc-main-internal-utils.ts

@@ -19,7 +19,7 @@ export function invokeInWebContents<T> (sender: Electron.WebContents, command: s
     const requestId = ++nextId;
     const channel = `${command}_RESPONSE_${requestId}`;
     ipcMainInternal.on(channel, function handler (event, error: Error, result: any) {
-      if (event.sender !== sender) {
+      if (event.type === 'frame' && event.sender !== sender) {
         console.error(`Reply to ${command} sent by unexpected WebContents (${event.sender.id})`);
         return;
       }

lib/browser/rpc-server.ts

@@ -5,9 +5,12 @@ import { IPC_MESSAGES } from '@electron/internal/common/ipc-messages';
 import { clipboard } from 'electron/common';
 
 import * as fs from 'fs';
+import * as path from 'path';
 
 // Implements window.close()
 ipcMainInternal.on(IPC_MESSAGES.BROWSER_WINDOW_CLOSE, function (event) {
+  if (event.type !== 'frame') return;
+
   const window = event.sender.getOwnerBrowserWindow();
   if (window) {
     window.close();
@@ -16,10 +19,12 @@ ipcMainInternal.on(IPC_MESSAGES.BROWSER_WINDOW_CLOSE, function (event) {
 });
 
 ipcMainInternal.handle(IPC_MESSAGES.BROWSER_GET_LAST_WEB_PREFERENCES, function (event) {
+  if (event.type !== 'frame') return;
   return event.sender.getLastWebPreferences();
 });
 
 ipcMainInternal.handle(IPC_MESSAGES.BROWSER_GET_PROCESS_MEMORY_INFO, function (event) {
+  if (event.type !== 'frame') return;
   return event.sender._getProcessMemoryInfo();
 });
 
@@ -43,22 +48,46 @@ ipcMainUtils.handleSync(IPC_MESSAGES.BROWSER_CLIPBOARD_SYNC, function (event, me
   return (clipboard as any)[method](...args);
 });
 
-const getPreloadScript = async function (preloadPath: string) {
-  let preloadSrc = null;
-  let preloadError = null;
-  try {
-    preloadSrc = await fs.promises.readFile(preloadPath, 'utf8');
-  } catch (error) {
-    preloadError = error;
+const getPreloadScriptsFromEvent = (event: ElectronInternal.IpcMainInternalEvent) => {
+  const session: Electron.Session = event.type === 'service-worker' ? event.session : event.sender.session;
+  let preloadScripts = session.getPreloadScripts();
+
+  if (event.type === 'frame') {
+    preloadScripts = preloadScripts.filter(script => script.type === 'frame');
+    const preload = event.sender._getPreloadScript();
+    if (preload) preloadScripts.push(preload);
+  } else if (event.type === 'service-worker') {
+    preloadScripts = preloadScripts.filter(script => script.type === 'service-worker');
+  } else {
+    throw new Error(`getPreloadScriptsFromEvent: event.type is invalid (${(event as any).type})`);
   }
-  return { preloadPath, preloadSrc, preloadError };
+
+  // TODO(samuelmaddock): Remove filter after Session.setPreloads is fully
+  // deprecated. The new API will prevent relative paths from being registered.
+  return preloadScripts.filter(script => path.isAbsolute(script.filePath));
+};
+
+const readPreloadScript = async function (script: Electron.PreloadScript): Promise<ElectronInternal.PreloadScript> {
+  let contents;
+  let error;
+  try {
+    contents = await fs.promises.readFile(script.filePath, 'utf8');
+  } catch (err) {
+    if (err instanceof Error) {
+      error = err;
+    }
+  }
+  return {
+    ...script,
+    contents,
+    error
+  };
 };
 
 ipcMainUtils.handleSync(IPC_MESSAGES.BROWSER_SANDBOX_LOAD, async function (event) {
-  const preloadPaths = event.sender._getPreloadPaths();
-
+  const preloadScripts = getPreloadScriptsFromEvent(event);
   return {
-    preloadScripts: await Promise.all(preloadPaths.map(path => getPreloadScript(path))),
+    preloadScripts: await Promise.all(preloadScripts.map(readPreloadScript)),
     process: {
       arch: process.arch,
       platform: process.platform,
@@ -71,9 +100,11 @@ ipcMainUtils.handleSync(IPC_MESSAGES.BROWSER_SANDBOX_LOAD, async function (event
 });
 
 ipcMainUtils.handleSync(IPC_MESSAGES.BROWSER_NONSANDBOX_LOAD, function (event) {
-  return { preloadPaths: event.sender._getPreloadPaths() };
+  const preloadScripts = getPreloadScriptsFromEvent(event);
+  return { preloadPaths: preloadScripts.map(script => script.filePath) };
 });
 
 ipcMainInternal.on(IPC_MESSAGES.BROWSER_PRELOAD_ERROR, function (event, preloadPath: string, error: Error) {
-  event.sender.emit('preload-error', event, preloadPath, error);
+  if (event.type !== 'frame') return;
+  event.sender?.emit('preload-error', event, preloadPath, error);
 });

lib/node/asar-fs-wrapper.ts

@@ -306,13 +306,17 @@ export const wrapFsWithAsar = (fs: Record<string, any>) => {
 
     const archive = getOrCreateArchive(asarPath);
     if (!archive) {
-      if (shouldThrowStatError(options)) throw createError(AsarError.INVALID_ARCHIVE, { asarPath });
+      if (shouldThrowStatError(options)) {
+        throw createError(AsarError.INVALID_ARCHIVE, { asarPath });
+      };
       return null;
     }
 
     const stats = archive.stat(filePath);
     if (!stats) {
-      if (shouldThrowStatError(options)) throw createError(AsarError.NOT_FOUND, { asarPath, filePath });
+      if (shouldThrowStatError(options)) {
+        throw createError(AsarError.NOT_FOUND, { asarPath, filePath });
+      };
       return null;
     }
 
@@ -690,7 +694,9 @@ export const wrapFsWithAsar = (fs: Record<string, any>) => {
     const { encoding } = options;
     const buffer = Buffer.alloc(info.size);
     const fd = archive.getFdAndValidateIntegrityLater();
-    if (!(fd >= 0)) throw createError(AsarError.NOT_FOUND, { asarPath, filePath });
+    if (!(fd >= 0)) {
+      throw createError(AsarError.NOT_FOUND, { asarPath, filePath });
+    }
 
     logASARAccess(asarPath, filePath, info.offset);
     fs.readSync(fd, buffer, 0, info.size, info.offset);
@@ -755,7 +761,7 @@ export const wrapFsWithAsar = (fs: Record<string, any>) => {
     nextTick(callback!, [null, files]);
   };
 
-  const { readdir: readdirPromise } = require('fs').promises;
+  const { readdir: readdirPromise } = fs.promises;
   fs.promises.readdir = async function (pathArgument: string, options: ReaddirOptions) {
     options = getOptions(options);
     pathArgument = getValidatedPath(pathArgument);
@@ -841,37 +847,30 @@ export const wrapFsWithAsar = (fs: Record<string, any>) => {
     return files;
   };
 
-  const binding = internalBinding('fs');
-  const { internalModuleReadJSON, kUsePromises } = binding;
-  internalBinding('fs').internalModuleReadJSON = (pathArgument: string) => {
-    const pathInfo = splitPath(pathArgument);
-    if (!pathInfo.isAsar) return internalModuleReadJSON(pathArgument);
+  const modBinding = internalBinding('modules');
+  const { readPackageJSON } = modBinding;
+  internalBinding('modules').readPackageJSON = (
+    jsonPath: string,
+    isESM: boolean,
+    base: undefined | string,
+    specifier: undefined | string
+  ) => {
+    const pathInfo = splitPath(jsonPath);
+    if (!pathInfo.isAsar) return readPackageJSON(jsonPath, isESM, base, specifier);
     const { asarPath, filePath } = pathInfo;
 
     const archive = getOrCreateArchive(asarPath);
-    if (!archive) return [];
+    if (!archive) return undefined;
 
-    const info = archive.getFileInfo(filePath);
-    if (!info) return [];
-    if (info.size === 0) return ['', false];
-    if (info.unpacked) {
-      const realPath = archive.copyFileOut(filePath);
-      const str = fs.readFileSync(realPath, { encoding: 'utf8' });
-      return [str, str.length > 0];
-    }
+    const realPath = archive.copyFileOut(filePath);
+    if (!realPath) return undefined;
 
-    const buffer = Buffer.alloc(info.size);
-    const fd = archive.getFdAndValidateIntegrityLater();
-    if (!(fd >= 0)) return [];
-
-    logASARAccess(asarPath, filePath, info.offset);
-    fs.readSync(fd, buffer, 0, info.size, info.offset);
-    validateBufferIntegrity(buffer, info.integrity);
-    const str = buffer.toString('utf8');
-    return [str, str.length > 0];
+    return readPackageJSON(realPath, isESM, base, specifier);
   };
 
-  const { internalModuleStat } = internalBinding('fs');
+  const binding = internalBinding('fs');
+
+  const { internalModuleStat } = binding;
   internalBinding('fs').internalModuleStat = (pathArgument: string) => {
     const pathInfo = splitPath(pathArgument);
     if (!pathInfo.isAsar) return internalModuleStat(pathArgument);
@@ -888,6 +887,7 @@ export const wrapFsWithAsar = (fs: Record<string, any>) => {
     return (stats.type === AsarFileType.kDirectory) ? 1 : 0;
   };
 
+  const { kUsePromises } = binding;
   async function readdirRecursive (originalPath: string, options: ReaddirOptions) {
     const result: any[] = [];
 

lib/preload_realm/.eslintrc.json

@@ -0,0 +1,18 @@
+{
+  "rules": {
+    "no-restricted-imports": [
+      "error",
+      {
+        "paths": [
+          "electron",
+          "electron/main"
+        ],
+        "patterns": [
+          "./*",
+          "../*",
+          "@electron/internal/browser/*"
+        ]
+      }
+    ]
+  }
+}

lib/preload_realm/api/exports/electron.ts

@@ -0,0 +1,6 @@
+import { defineProperties } from '@electron/internal/common/define-properties';
+import { moduleList } from '@electron/internal/preload_realm/api/module-list';
+
+module.exports = {};
+
+defineProperties(module.exports, moduleList);

lib/preload_realm/api/module-list.ts

@@ -0,0 +1,14 @@
+export const moduleList: ElectronInternal.ModuleEntry[] = [
+  {
+    name: 'contextBridge',
+    loader: () => require('@electron/internal/renderer/api/context-bridge')
+  },
+  {
+    name: 'ipcRenderer',
+    loader: () => require('@electron/internal/renderer/api/ipc-renderer')
+  },
+  {
+    name: 'nativeImage',
+    loader: () => require('@electron/internal/common/api/native-image')
+  }
+];

lib/preload_realm/init.ts

@@ -0,0 +1,56 @@
+import '@electron/internal/sandboxed_renderer/pre-init';
+import { IPC_MESSAGES } from '@electron/internal/common/ipc-messages';
+import type * as ipcRendererUtilsModule from '@electron/internal/renderer/ipc-renderer-internal-utils';
+import { createPreloadProcessObject, executeSandboxedPreloadScripts } from '@electron/internal/sandboxed_renderer/preload';
+
+import * as events from 'events';
+
+declare const binding: {
+  get: (name: string) => any;
+  process: NodeJS.Process;
+  createPreloadScript: (src: string) => Function
+};
+
+const ipcRendererUtils = require('@electron/internal/renderer/ipc-renderer-internal-utils') as typeof ipcRendererUtilsModule;
+
+const {
+  preloadScripts,
+  process: processProps
+} = ipcRendererUtils.invokeSync<{
+  preloadScripts: ElectronInternal.PreloadScript[];
+  process: NodeJS.Process;
+}>(IPC_MESSAGES.BROWSER_SANDBOX_LOAD);
+
+const electron = require('electron');
+
+const loadedModules = new Map<string, any>([
+  ['electron', electron],
+  ['electron/common', electron],
+  ['events', events],
+  ['node:events', events]
+]);
+
+const loadableModules = new Map<string, Function>([
+  ['url', () => require('url')],
+  ['node:url', () => require('url')]
+]);
+
+const preloadProcess = createPreloadProcessObject();
+
+Object.assign(preloadProcess, binding.process);
+Object.assign(preloadProcess, processProps);
+
+Object.assign(process, processProps);
+
+require('@electron/internal/renderer/ipc-native-setup');
+
+executeSandboxedPreloadScripts({
+  loadedModules: loadedModules,
+  loadableModules: loadableModules,
+  process: preloadProcess,
+  createPreloadScript: binding.createPreloadScript,
+  exposeGlobals: {
+    Buffer: Buffer,
+    global: global
+  }
+}, preloadScripts);

lib/renderer/api/context-bridge.ts

@@ -5,13 +5,17 @@ const checkContextIsolationEnabled = () => {
 };
 
 const contextBridge: Electron.ContextBridge = {
-  exposeInMainWorld: (key: string, api: any) => {
+  exposeInMainWorld: (key, api) => {
     checkContextIsolationEnabled();
     return binding.exposeAPIInWorld(0, key, api);
   },
-  exposeInIsolatedWorld: (worldId: number, key: string, api: any) => {
+  exposeInIsolatedWorld: (worldId, key, api) => {
     checkContextIsolationEnabled();
     return binding.exposeAPIInWorld(worldId, key, api);
+  },
+  executeInMainWorld: (script) => {
+    checkContextIsolationEnabled();
+    return binding.executeInWorld(0, script);
   }
 };
 
@@ -27,8 +31,7 @@ export const internalContextBridge = {
   },
   overrideGlobalPropertyFromIsolatedWorld: (keys: string[], getter: Function, setter?: Function) => {
     return binding._overrideGlobalPropertyFromIsolatedWorld(keys, getter, setter || null);
-  },
-  isInMainWorld: () => binding._isCalledFromMainWorld() as boolean
+  }
 };
 
 if (binding._isDebug) {

lib/renderer/api/ipc-renderer.ts

@@ -1,8 +1,10 @@
+import { getIPCRenderer } from '@electron/internal/renderer/ipc-renderer-bindings';
+
 import { EventEmitter } from 'events';
 
-const { ipc } = process._linkedBinding('electron_renderer_ipc');
-
+const ipc = getIPCRenderer();
 const internal = false;
+
 class IpcRenderer extends EventEmitter implements Electron.IpcRenderer {
   send (channel: string, ...args: any[]) {
     return ipc.send(internal, channel, args);

lib/renderer/common-init.ts

@@ -1,27 +1,16 @@
-import { ipcRendererInternal } from '@electron/internal/renderer/ipc-renderer-internal';
 import type * as securityWarningsModule from '@electron/internal/renderer/security-warnings';
 import type * as webFrameInitModule from '@electron/internal/renderer/web-frame-init';
 import type * as webViewInitModule from '@electron/internal/renderer/web-view/web-view-init';
 import type * as windowSetupModule from '@electron/internal/renderer/window-setup';
 
-import { ipcRenderer } from 'electron/renderer';
-
 const { mainFrame } = process._linkedBinding('electron_renderer_web_frame');
-const v8Util = process._linkedBinding('electron_common_v8_util');
 
 const nodeIntegration = mainFrame.getWebPreference('nodeIntegration');
 const webviewTag = mainFrame.getWebPreference('webviewTag');
 const isHiddenPage = mainFrame.getWebPreference('hiddenPage');
 const isWebView = mainFrame.getWebPreference('isWebView');
 
-// ElectronApiServiceImpl will look for the "ipcNative" hidden object when
-// invoking the 'onMessage' callback.
-v8Util.setHiddenValue(global, 'ipcNative', {
-  onMessage (internal: boolean, channel: string, ports: MessagePort[], args: any[]) {
-    const sender = internal ? ipcRendererInternal : ipcRenderer;
-    sender.emit(channel, { sender, ports }, ...args);
-  }
-});
+require('@electron/internal/renderer/ipc-native-setup');
 
 switch (window.location.protocol) {
   case 'devtools:': {

lib/renderer/init.ts

@@ -12,7 +12,7 @@ const Module = require('module') as NodeJS.ModuleInternal;
 const originalModuleLoad = Module._load;
 Module._load = function (request: string) {
   if (request === 'vm') {
-    console.warn('The vm module of Node.js is deprecated in the renderer process and will be removed.');
+    console.warn('The vm module of Node.js is unsupported in Electron\'s renderer process due to incompatibilities with the Blink rendering engine. Crashes are likely and avoiding the module is highly recommended. This module may be removed in a future release.');
   }
   return originalModuleLoad.apply(this, arguments as any);
 };

lib/renderer/ipc-native-setup.ts

@@ -0,0 +1,14 @@
+import { ipcRendererInternal } from '@electron/internal/renderer/ipc-renderer-internal';
+
+import { ipcRenderer } from 'electron/renderer';
+
+const v8Util = process._linkedBinding('electron_common_v8_util');
+
+// ElectronApiServiceImpl will look for the "ipcNative" hidden object when
+// invoking the 'onMessage' callback.
+v8Util.setHiddenValue(globalThis, 'ipcNative', {
+  onMessage (internal: boolean, channel: string, ports: MessagePort[], args: any[]) {
+    const sender = internal ? ipcRendererInternal : ipcRenderer;
+    sender.emit(channel, { sender, ports }, ...args);
+  }
+});

lib/renderer/ipc-renderer-bindings.ts

@@ -0,0 +1,17 @@
+let ipc: NodeJS.IpcRendererImpl | undefined;
+
+/**
+ * Get IPCRenderer implementation for the current process.
+ */
+export function getIPCRenderer () {
+  if (ipc) return ipc;
+  const ipcBinding = process._linkedBinding('electron_renderer_ipc');
+  switch (process.type) {
+    case 'renderer':
+      return (ipc = ipcBinding.createForRenderFrame());
+    case 'service-worker':
+      return (ipc = ipcBinding.createForServiceWorker());
+    default:
+      throw new Error(`Cannot create IPCRenderer for '${process.type}' process`);
+  }
+};

lib/renderer/ipc-renderer-internal.ts

@@ -1,7 +1,8 @@
+import { getIPCRenderer } from '@electron/internal/renderer/ipc-renderer-bindings';
+
 import { EventEmitter } from 'events';
 
-const { ipc } = process._linkedBinding('electron_renderer_ipc');
-
+const ipc = getIPCRenderer();
 const internal = true;
 
 class IpcRendererInternal extends EventEmitter implements ElectronInternal.IpcRendererInternal {

lib/renderer/window-setup.ts

@@ -15,7 +15,7 @@ export const windowSetup = (isWebView: boolean, isHiddenPage: boolean) => {
 
   // But we do not support prompt().
   window.prompt = function () {
-    throw new Error('prompt() is and will not be supported.');
+    throw new Error('prompt() is not supported.');
   };
   if (contextIsolationEnabled) internalContextBridge.overrideGlobalValueFromIsolatedWorld(['prompt'], window.prompt);
 

lib/sandboxed_renderer/init.ts

@@ -1,45 +1,23 @@
+import '@electron/internal/sandboxed_renderer/pre-init';
 import { IPC_MESSAGES } from '@electron/internal/common/ipc-messages';
-import type * as ipcRendererInternalModule from '@electron/internal/renderer/ipc-renderer-internal';
 import type * as ipcRendererUtilsModule from '@electron/internal/renderer/ipc-renderer-internal-utils';
+import { createPreloadProcessObject, executeSandboxedPreloadScripts } from '@electron/internal/sandboxed_renderer/preload';
 
 import * as events from 'events';
 import { setImmediate, clearImmediate } from 'timers';
 
 declare const binding: {
-  get: (name: string) => any;
   process: NodeJS.Process;
   createPreloadScript: (src: string) => Function
 };
 
-const { EventEmitter } = events;
-
-process._linkedBinding = binding.get;
-
-const v8Util = process._linkedBinding('electron_common_v8_util');
-// Expose Buffer shim as a hidden value. This is used by C++ code to
-// deserialize Buffer instances sent from browser process.
-v8Util.setHiddenValue(global, 'Buffer', Buffer);
-// The process object created by webpack is not an event emitter, fix it so
-// the API is more compatible with non-sandboxed renderers.
-for (const prop of Object.keys(EventEmitter.prototype) as (keyof typeof process)[]) {
-  if (Object.hasOwn(process, prop)) {
-    delete process[prop];
-  }
-}
-Object.setPrototypeOf(process, EventEmitter.prototype);
-
-const { ipcRendererInternal } = require('@electron/internal/renderer/ipc-renderer-internal') as typeof ipcRendererInternalModule;
 const ipcRendererUtils = require('@electron/internal/renderer/ipc-renderer-internal-utils') as typeof ipcRendererUtilsModule;
 
 const {
   preloadScripts,
   process: processProps
 } = ipcRendererUtils.invokeSync<{
-  preloadScripts: {
-    preloadPath: string;
-    preloadSrc: string | null;
-    preloadError: null | Error;
-  }[];
+  preloadScripts: ElectronInternal.PreloadScript[];
   process: NodeJS.Process;
 }>(IPC_MESSAGES.BROWSER_SANDBOX_LOAD);
 
@@ -60,89 +38,32 @@ const loadableModules = new Map<string, Function>([
   ['node:url', () => require('url')]
 ]);
 
-// Pass different process object to the preload script.
-const preloadProcess: NodeJS.Process = new EventEmitter() as any;
+const preloadProcess = createPreloadProcessObject();
 
 // InvokeEmitProcessEvent in ElectronSandboxedRendererClient will look for this
+const v8Util = process._linkedBinding('electron_common_v8_util');
 v8Util.setHiddenValue(global, 'emit-process-event', (event: string) => {
   (process as events.EventEmitter).emit(event);
   (preloadProcess as events.EventEmitter).emit(event);
 });
 
-Object.assign(preloadProcess, binding.process);
-Object.assign(preloadProcess, processProps);
-
-Object.assign(process, binding.process);
 Object.assign(process, processProps);
 
-process.getProcessMemoryInfo = preloadProcess.getProcessMemoryInfo = () => {
-  return ipcRendererInternal.invoke<Electron.ProcessMemoryInfo>(IPC_MESSAGES.BROWSER_GET_PROCESS_MEMORY_INFO);
-};
-
-Object.defineProperty(preloadProcess, 'noDeprecation', {
-  get () {
-    return process.noDeprecation;
-  },
-  set (value) {
-    process.noDeprecation = value;
-  }
-});
-
-// This is the `require` function that will be visible to the preload script
-function preloadRequire (module: string) {
-  if (loadedModules.has(module)) {
-    return loadedModules.get(module);
-  }
-  if (loadableModules.has(module)) {
-    const loadedModule = loadableModules.get(module)!();
-    loadedModules.set(module, loadedModule);
-    return loadedModule;
-  }
-  throw new Error(`module not found: ${module}`);
-}
-
-// Process command line arguments.
-const { hasSwitch } = process._linkedBinding('electron_common_command_line');
-
-// Similar to nodes --expose-internals flag, this exposes _linkedBinding so
-// that tests can call it to get access to some test only bindings
-if (hasSwitch('unsafely-expose-electron-internals-for-testing')) {
-  preloadProcess._linkedBinding = process._linkedBinding;
-}
+Object.assign(preloadProcess, binding.process);
+Object.assign(preloadProcess, processProps);
 
 // Common renderer initialization
 require('@electron/internal/renderer/common-init');
 
-// Wrap the script into a function executed in global scope. It won't have
-// access to the current scope, so we'll expose a few objects as arguments:
-//
-// - `require`: The `preloadRequire` function
-// - `process`: The `preloadProcess` object
-// - `Buffer`: Shim of `Buffer` implementation
-// - `global`: The window object, which is aliased to `global` by webpack.
-function runPreloadScript (preloadSrc: string) {
-  const preloadWrapperSrc = `(function(require, process, Buffer, global, setImmediate, clearImmediate, exports, module) {
-  ${preloadSrc}
-  })`;
-
-  // eval in window scope
-  const preloadFn = binding.createPreloadScript(preloadWrapperSrc);
-  const exports = {};
-
-  preloadFn(preloadRequire, preloadProcess, Buffer, global, setImmediate, clearImmediate, exports, { exports });
-}
-
-for (const { preloadPath, preloadSrc, preloadError } of preloadScripts) {
-  try {
-    if (preloadSrc) {
-      runPreloadScript(preloadSrc);
-    } else if (preloadError) {
-      throw preloadError;
-    }
-  } catch (error) {
-    console.error(`Unable to load preload script: ${preloadPath}`);
-    console.error(error);
-
-    ipcRendererInternal.send(IPC_MESSAGES.BROWSER_PRELOAD_ERROR, preloadPath, error);
+executeSandboxedPreloadScripts({
+  loadedModules: loadedModules,
+  loadableModules: loadableModules,
+  process: preloadProcess,
+  createPreloadScript: binding.createPreloadScript,
+  exposeGlobals: {
+    Buffer: Buffer,
+    global: global,
+    setImmediate: setImmediate,
+    clearImmediate: clearImmediate
   }
-}
+}, preloadScripts);

lib/sandboxed_renderer/pre-init.ts

@@ -0,0 +1,30 @@
+// Pre-initialization code for sandboxed renderers.
+
+import * as events from 'events';
+
+declare const binding: {
+  get: (name: string) => any;
+  process: NodeJS.Process;
+};
+
+// Expose internal binding getter.
+process._linkedBinding = binding.get;
+
+const { EventEmitter } = events;
+const v8Util = process._linkedBinding('electron_common_v8_util');
+
+// Include properties from script 'binding' parameter.
+Object.assign(process, binding.process);
+
+// Expose Buffer shim as a hidden value. This is used by C++ code to
+// deserialize Buffer instances sent from browser process.
+v8Util.setHiddenValue(global, 'Buffer', Buffer);
+
+// The process object created by webpack is not an event emitter, fix it so
+// the API is more compatible with non-sandboxed renderers.
+for (const prop of Object.keys(EventEmitter.prototype) as (keyof typeof process)[]) {
+  if (Object.hasOwn(process, prop)) {
+    delete process[prop];
+  }
+}
+Object.setPrototypeOf(process, EventEmitter.prototype);