diff --git a/.envrc b/.envrc
index a60b67f960..47ab5b6410 100644
--- a/.envrc
+++ b/.envrc
@@ -27,6 +27,10 @@ function @test-self {
   @meteor self-test "$@"
 }
 
+function @test-in-console {
+  "$ROOT_DIR/packages/test-in-console/run.sh" "$@"
+}
+
 function @check-syntax {
   node "$ROOT_DIR/scripts/admin/check-legacy-syntax/check-syntax.js"
 }
diff --git a/.github/workflows/meteor-selftest-windows.yml b/.github/workflows/meteor-selftest-windows.yml
index d78f633ec3..2935532c1b 100644
--- a/.github/workflows/meteor-selftest-windows.yml
+++ b/.github/workflows/meteor-selftest-windows.yml
@@ -22,6 +22,9 @@ env:
 jobs:
   test:
     runs-on: windows-2019-meteor
+    concurrency:
+      group: ${{ github.head_ref }}-meteor-selftest-windows
+      cancel-in-progress: true
 
     steps:
       - name: Checkout code
diff --git a/.github/workflows/test-deprecated-packages.yml b/.github/workflows/test-deprecated-packages.yml
new file mode 100644
index 0000000000..e4ed12fe92
--- /dev/null
+++ b/.github/workflows/test-deprecated-packages.yml
@@ -0,0 +1,52 @@
+name: Test Deprecated Packages
+
+# Disabled until we figure out how to fix the error from puppeteer
+# Runs on Travis CI for now
+#
+#on:
+#  push:
+#    branches:
+#      - main
+#  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    concurrency:
+      group: ${{ github.head_ref }}-test-deprecated-packages
+      cancel-in-progress: true
+    timeout-minutes: 60
+
+    env:
+      PUPPETEER_DOWNLOAD_PATH: /home/runner/.npm/chromium
+
+    steps:
+      - name: Update and install dependencies
+        run: sudo apt-get update && sudo apt-get install -y libnss3 g++-12
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20.15.1
+
+      - name: Cache Node.js modules
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.npm
+            .meteor
+            .babel-cache
+            dev_bundle
+            /home/runner/.npm/chromium
+          key: ${{ runner.os }}-node-${{ hashFiles('meteor', '**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run tests
+        run: ./packages/test-in-console/run.sh
\ No newline at end of file
diff --git a/packages/accounts-2fa/.npm/package/npm-shrinkwrap.json b/packages/accounts-2fa/.npm/package/npm-shrinkwrap.json
index ebacac28ad..64d0411523 100644
--- a/packages/accounts-2fa/.npm/package/npm-shrinkwrap.json
+++ b/packages/accounts-2fa/.npm/package/npm-shrinkwrap.json
@@ -2,9 +2,9 @@
   "lockfileVersion": 4,
   "dependencies": {
     "@types/node": {
-      "version": "22.7.5",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.5.tgz",
-      "integrity": "sha512-jML7s2NAzMWc//QSJ1a3prpk78cOPchGvXJsC3C6R6PSMoooztvRVQEz89gmBTBY1SPMaqo5teB4uNHPdetShQ=="
+      "version": "22.7.6",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.6.tgz",
+      "integrity": "sha512-/d7Rnj0/ExXDMcioS78/kf1lMzYk4BZV8MZGTBKzTGZ6/406ukkbYlIsZmMPhcR5KlkunDHQLrtAVmSq7r+mSw=="
     },
     "@types/notp": {
       "version": "2.0.5",
@@ -32,9 +32,9 @@
       "integrity": "sha512-OEI0IWCe+Dw46019YLl6V10Us5bi574EvlJEOcAkB29IzQ/mYD1A6RyNHLjZPiHCmuodxvgF6U+vZO1L15lxVA=="
     },
     "tslib": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.7.0.tgz",
-      "integrity": "sha512-gLXCKdN1/j47AiHiOkJN69hJmcbGTHI0ImLmbYLHykhgeN0jVGola9yVjFgzCUklsZQMW55o+dW7IXv3RCXDzA=="
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.0.tgz",
+      "integrity": "sha512-jWVzBLplnCmoaTr13V9dYbiQ99wvZRd0vNWaDRg+aVYRcjDF3nDksxFDE/+fkXnKhpnUUkmx5pK/v8mCtLVqZA=="
     },
     "undici-types": {
       "version": "6.19.8",
diff --git a/packages/deprecated/stylus/.npm/plugin/compileStylusBatch/npm-shrinkwrap.json b/packages/deprecated/stylus/.npm/plugin/compileStylusBatch/npm-shrinkwrap.json
index 4bc9ce2a15..1fe92eee26 100644
--- a/packages/deprecated/stylus/.npm/plugin/compileStylusBatch/npm-shrinkwrap.json
+++ b/packages/deprecated/stylus/.npm/plugin/compileStylusBatch/npm-shrinkwrap.json
@@ -32,9 +32,9 @@
       "integrity": "sha512-fKSWtyNQTclfi1A+s2KU91/r1mfANG1ZibxTdCwJGfV1J9UwcV22plFOm0wkaq4WzqW87zxiAkyp2Ho1Wn1NnA=="
     },
     "caniuse-db": {
-      "version": "1.0.30001640",
-      "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30001640.tgz",
-      "integrity": "sha512-K8/5iWoH/NULlqJz/iaopQJraQCHGcFGvs8dmTpAH7GyvoQu2Xq8ht3jq2c+wNck4bgQu/PHu2GN2mJfUj9qtw=="
+      "version": "1.0.30001669",
+      "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30001669.tgz",
+      "integrity": "sha512-GK+G6CnRZ7IY2J2H3bcm9kshwHcJ4ZWDC5u9WaIh7DQAAHHeuxIPtaZd15GMTmGvGbDx/u1AcQs3MYur9Tem7A=="
     },
     "concat-map": {
       "version": "0.0.1",
@@ -47,9 +47,9 @@
       "integrity": "sha512-OI38lO4JQQX2GSisTqwiSFxiWNmLajXdW4tCCxAuiwGKjusHALQadSHBSxGlU8lrFp47IkLuU2AfSYz31qpETQ=="
     },
     "debug": {
-      "version": "4.3.5",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.5.tgz",
-      "integrity": "sha512-pt0bNEmneDIvdL1Xsd9oDQ/wrQRkXDT4AUWlNZNPKvW5x/jyO9VFXkJUP07vQ2upmw5PlaITaPKc31jK13V+jg=="
+      "version": "4.3.7",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.7.tgz",
+      "integrity": "sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ=="
     },
     "fs.realpath": {
       "version": "1.0.0",
@@ -97,9 +97,9 @@
       "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw=="
     },
     "ms": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
     },
     "multi-stage-sourcemap": {
       "version": "0.2.1",
diff --git a/packages/email/.npm/package/npm-shrinkwrap.json b/packages/email/.npm/package/npm-shrinkwrap.json
index fcc8fd64c8..68404a03da 100644
--- a/packages/email/.npm/package/npm-shrinkwrap.json
+++ b/packages/email/.npm/package/npm-shrinkwrap.json
@@ -2,9 +2,9 @@
   "lockfileVersion": 4,
   "dependencies": {
     "@types/node": {
-      "version": "22.7.5",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.5.tgz",
-      "integrity": "sha512-jML7s2NAzMWc//QSJ1a3prpk78cOPchGvXJsC3C6R6PSMoooztvRVQEz89gmBTBY1SPMaqo5teB4uNHPdetShQ=="
+      "version": "22.7.6",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.6.tgz",
+      "integrity": "sha512-/d7Rnj0/ExXDMcioS78/kf1lMzYk4BZV8MZGTBKzTGZ6/406ukkbYlIsZmMPhcR5KlkunDHQLrtAVmSq7r+mSw=="
     },
     "@types/nodemailer": {
       "version": "6.4.14",
diff --git a/packages/test-helpers/async_multi.js b/packages/test-helpers/async_multi.js
index 1286508fde..c9c09ac66e 100644
--- a/packages/test-helpers/async_multi.js
+++ b/packages/test-helpers/async_multi.js
@@ -53,31 +53,31 @@ var ExpectationManager = function (test, onComplete) {
 };
 
 Object.assign(ExpectationManager.prototype, {
-  expect: function (...args) {
+  expect: function (/* arguments */) {
     var self = this;
 
-    if (typeof args[0] === "function")
-      var expected = args[0];
+    if (typeof arguments[0] === "function")
+      var expected = arguments[0];
     else
-      var expected = args;
+      var expected = Array.from(arguments);
 
     if (self.closed)
       throw new Error("Too late to add more expectations to the test");
     self.outstanding++;
 
-    return async function (...args) {
+    return async function (/* arguments */) {
       if (self.dead)
         return;
 
       if (typeof expected === "function") {
         try {
-          await expected.apply({}, args);
+          await expected.apply({}, arguments);
         } catch (e) {
           if (self.cancel())
             self.test.exception(e);
         }
       } else {
-        self.test.equal(args, expected);
+        self.test.equal(Array.from(arguments), expected);
       }
 
       self.outstanding--;
@@ -115,12 +115,12 @@ testAsyncMulti = function (name, funcs, { isOnly = false } = {}) {
 
   const addFunction = isOnly ? Tinytest.onlyAsync : Tinytest.addAsync;
   addFunction(name, function (test, onComplete) {
-    var remaining = Object.assign({}, funcs);
+    var remaining = [...funcs]
     var context = {};
     var i = 0;
 
     var runNext = function () {
-      var func = Object.values(remaining).shift();
+      var func = remaining.shift();
       if (!func) {
         delete test.extraDetails.asyncBlock;
         onComplete();
diff --git a/packages/test-helpers/callback_logger.js b/packages/test-helpers/callback_logger.js
index 2f98cbe8de..0cac2c825c 100644
--- a/packages/test-helpers/callback_logger.js
+++ b/packages/test-helpers/callback_logger.js
@@ -1,4 +1,3 @@
-import isEmpty from 'lodash.isempty';
 import isEqual from 'lodash.isequal';
 
 // This file allows you to write tests that expect certain callbacks to be
@@ -24,11 +23,9 @@ var CallbackLogger = function (test, callbackNames) {
   var self = this;
   self._log = [];
   self._test = test;
-  self._yielded = false;
   callbackNames.forEach(function (callbackName) {
-    self[callbackName] = function () {
-      var args = Array.from(arguments);
-      self._log.push({callback: callbackName, args: args});
+    self[callbackName] = function (...args) {
+      self._log.push({ callback: callbackName, args });
     };
   });
 };
@@ -36,7 +33,7 @@ var CallbackLogger = function (test, callbackNames) {
 CallbackLogger.prototype.expectResult = async function (callbackName, args) {
   var self = this;
   await self._waitForLengthOrTimeout(1);
-  if (isEmpty(self._log)) {
+  if (self._log.length === 0) {
     self._test.fail(["Expected callback " + callbackName + " got none"]);
     return;
   }
@@ -78,8 +75,10 @@ CallbackLogger.prototype.expectResultUnordered = async function (list) {
 
   await self._waitForLengthOrTimeout(list.length);
 
-  list = [...list]; // shallow copy.
+  list = [...list];
+
   var i = list.length;
+
   while (i > 0) {
     var found = false;
     var dequeued = self._log.shift();
@@ -114,4 +113,4 @@ CallbackLogger.prototype.expectNoResult = async function (fn) {
   await self._waitForLengthOrTimeout(0);
 
   self._expectNoResultImpl();
-};
\ No newline at end of file
+};
diff --git a/packages/test-helpers/connection_server.js b/packages/test-helpers/connection_server.js
index ffb15ad5bc..255bfed03d 100644
--- a/packages/test-helpers/connection_server.js
+++ b/packages/test-helpers/connection_server.js
@@ -1,5 +1,3 @@
-import isString from 'lodash.isstring';
-
 // Establish a connection from the server to the server, and wait
 // until the client side of the connection has received the session
 // id.  On success call `succeeded` with two arguments, the client
@@ -15,7 +13,7 @@ makeTestConnection = function (test, succeeded, failed) {
 
   // Add incoming connections to `serverConns`.
   var onConnectionHandle = Meteor.onConnection(function (serverConn) {
-    test.isTrue(isString(serverConn.id), "connection handle id exists and is a string");
+    test.isTrue(typeof serverConn.id === 'string', "connection handle id exists and is a string");
     if (serverConns[serverConn.id]) {
       test.fail("onConnection callback called multiple times for same session id");
       failed();
diff --git a/packages/test-helpers/package.js b/packages/test-helpers/package.js
index bb7f296c60..8eea18c3f9 100644
--- a/packages/test-helpers/package.js
+++ b/packages/test-helpers/package.js
@@ -5,9 +5,7 @@ Package.describe({
 
 Npm.depends({
   'lodash.isequal': '4.5.0',
-  'lodash.isempty': '4.4.0',
-  'lodash.isstring': '4.0.1'
-});
+})
 
 Package.onUse(function (api) {
   api.use([
diff --git a/packages/test-helpers/try_all_permutations_test.js b/packages/test-helpers/try_all_permutations_test.js
index 4c9b451fff..91378b1bf8 100644
--- a/packages/test-helpers/try_all_permutations_test.js
+++ b/packages/test-helpers/try_all_permutations_test.js
@@ -61,7 +61,7 @@ Tinytest.add("test-helpers - try_all_permutations", function (test) {
     var seen = {};
 
     for (var i = 0; i < n; i++)
-      fs.push(function (x) { seq += x + "_"; }.bind(null, i));
+      fs.push((function (x) { seq += x + "_"; }).bind(null, i));
     try_all_permutations(
       function () {seq = "";},
       fs,
diff --git a/packages/test-in-console/package.js b/packages/test-in-console/package.js
index 810f07e1f3..04a0729eb2 100644
--- a/packages/test-in-console/package.js
+++ b/packages/test-in-console/package.js
@@ -4,7 +4,7 @@ Package.describe({
 });
 
 Package.onUse(function(api) {
-  api.use(['tinytest', 'random', 'ejson', 'check']);
+  api.use(['tinytest', 'random', 'ejson', 'check', 'ecmascript']);
   api.use('fetch', 'server');
 
   api.export('TEST_STATUS', 'client');
@@ -13,9 +13,7 @@ Package.onUse(function(api) {
 
   api.addFiles(['reporter.js'], 'server');
 
-  // This is to be run by phantomjs, not as part of normal package code.
-  api.addAssets('phantomRunner.js', 'server');
-  api.addAssets('puppeteerRunner.js', 'server');
+  api.addAssets('puppeteer_runner.js', 'server');
 
   api.export('runTests');
 });
diff --git a/packages/test-in-console/phantomRunner.js b/packages/test-in-console/phantomRunner.js
deleted file mode 100644
index 43fc0b8c47..0000000000
--- a/packages/test-in-console/phantomRunner.js
+++ /dev/null
@@ -1,69 +0,0 @@
-var createPage = require('webpage').create;
-var system = require('system');
-var platform = system.args[1] || 'local';
-var platformUrl = system.env.URL + platform;
-var testUrls = [
-  // Additional application URLs can be added here to re-run tests in
-  // PhantomJS with different query parameter-based configurations.
-  platformUrl
-];
-
-function runNextUrl() {
-  var url = testUrls.shift();
-  if (!url) {
-    phantom.exit(0);
-    return;
-  }
-
-  console.log('Running Meteor tests in PhantomJS... ' + url);
-
-  var page = createPage();
-
-  page.onConsoleMessage = function(message) {
-    console.log(message);
-  };
-
-  page.open(url);
-
-  function poll() {
-    if (isDone(page)) {
-      var failCount = getFailCount(page);
-      if (failCount > 0) {
-        phantom.exit(1);
-      } else {
-        page.close();
-        setTimeout(runNextUrl, 1000);
-      }
-    } else {
-      setTimeout(poll, 1000);
-    }
-  }
-
-  poll();
-}
-
-function isDone(page) {
-  return page.evaluate(function() {
-    if (typeof TEST_STATUS !== 'undefined') {
-      return TEST_STATUS.DONE;
-    }
-
-    return typeof DONE !== 'undefined' && DONE;
-  });
-}
-
-function getFailCount(page) {
-  return page.evaluate(function() {
-    if (typeof TEST_STATUS !== 'undefined') {
-      return TEST_STATUS.FAILURES;
-    }
-
-    if (typeof FAILURES === 'undefined') {
-      return 1;
-    }
-
-    return 0;
-  });
-}
-
-runNextUrl();
diff --git a/packages/test-in-console/puppeteerRunner.js b/packages/test-in-console/puppeteer_runner.js
similarity index 95%
rename from packages/test-in-console/puppeteerRunner.js
rename to packages/test-in-console/puppeteer_runner.js
index d0a59ae9c9..0ad644d070 100644
--- a/packages/test-in-console/puppeteerRunner.js
+++ b/packages/test-in-console/puppeteer_runner.js
@@ -5,6 +5,10 @@ let testNumber = 0;
 async function runNextUrl(browser) {
   const page = await browser.newPage();
 
+  // page.on('console', msg => {
+  //   console.log('PAGE LOG:', msg.text());
+  // });
+
   page.on('console', async msg => {
     // this is a way to make sure the travis does not timeout
     // if the test is running for too long without any output to the console (10 minutes)
@@ -58,7 +62,7 @@ async function runNextUrl(browser) {
     }
   }
 
-  poll();
+  await poll();
 }
 
 /**
@@ -130,9 +134,10 @@ async function runTests() {
       '--disable-setuid-sandbox',
       '--disable-web-security',
     ],
+    headless: "new",
   });
   console.log(`Using version: ${await browser.version()}`);
-  runNextUrl(browser);
+  await runNextUrl(browser)
 }
 
 runTests().catch((e) =>
diff --git a/packages/test-in-console/reporter.js b/packages/test-in-console/reporter.js
index 099e43a81c..7fb49b28ce 100644
--- a/packages/test-in-console/reporter.js
+++ b/packages/test-in-console/reporter.js
@@ -1,14 +1,7 @@
-// A hacky way to extract the phantom runner script from the package.
-if (process.env.WRITE_RUNNER_JS) {
-  Npm.require('fs').writeFileSync(
-    process.env.WRITE_RUNNER_JS, Buffer.from(Assets.getBinary('runner.js')));
-}
+let url = null;
 
-var url =  null;
-if (Meteor.settings &&
-    Meteor.settings.public &&
-    Meteor.settings.public.runId &&
-    Meteor.settings.public.reportTo) {
+if (Meteor.settings?.public?.runId &&
+    Meteor.settings?.public?.reportTo) {
   url = Meteor.settings.public.reportTo +
       "/report/" +
       Meteor.settings.public.runId;
diff --git a/packages/test-in-console/run.sh b/packages/test-in-console/run.sh
index 38012a605d..9a6231d209 100755
--- a/packages/test-in-console/run.sh
+++ b/packages/test-in-console/run.sh
@@ -8,36 +8,21 @@
 cd $(dirname $0)/../..
 export METEOR_HOME=`pwd`
 
-export phantom=$phantom
-
-# only install dependencies if required
-if [ "$phantom" = true ]
-then
-    # Just in case these packages haven't been installed elsewhere.
-    ./meteor npm install -g phantomjs-prebuilt browserstack-webdriver
-else
-    # Installs into dev_bundle/lib/node_modules/puppeteer.
-    ./meteor npm install -g puppeteer@20.4.0
-fi
+# Installs into dev_bundle/lib/node_modules/puppeteer.
+./meteor npm install -g puppeteer@20.4.0
 
 export PATH=$METEOR_HOME:$PATH
-# synchronously get the dev bundle and NPM modules if they're not there.
-./meteor --help || exit 1
 
 export URL='http://127.0.0.1:4096/'
 export METEOR_PACKAGE_DIRS='packages/deprecated'
 
-exec 3< <(meteor test-packages --driver-package test-in-console -p 4096 --exclude ${TEST_PACKAGES_EXCLUDE:-''} $1)
+exec 3< <(./meteor test-packages --driver-package test-in-console -p 4096 --exclude ${TEST_PACKAGES_EXCLUDE:-''} $1)
 EXEC_PID=$!
+trap "pkill -TERM -P $EXEC_PID; exit 1" SIGINT
 
 sed '/test-in-console listening$/q' <&3
 
-if [ "$phantom" = true ]
-then
-    ./dev_bundle/bin/phantomjs "$METEOR_HOME/packages/test-in-console/phantomRunner.js"
-else
-    node "$METEOR_HOME/packages/test-in-console/puppeteerRunner.js"
-fi
+node --trace-warnings "$METEOR_HOME/packages/test-in-console/puppeteer_runner.js"
 
 STATUS=$?
 
diff --git a/packages/webapp/.npm/package/npm-shrinkwrap.json b/packages/webapp/.npm/package/npm-shrinkwrap.json
index 39ebcd33bb..e904107de5 100644
--- a/packages/webapp/.npm/package/npm-shrinkwrap.json
+++ b/packages/webapp/.npm/package/npm-shrinkwrap.json
@@ -32,9 +32,9 @@
       "integrity": "sha512-/pyBZWSLD2n0dcHE3hq8s8ZvcETHtEuF+3E7XVt0Ig2nvsVQXdghHVcEkIWjy9A0wKfTn97a/PSDYohKIlnP/w=="
     },
     "@types/node": {
-      "version": "22.7.5",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.5.tgz",
-      "integrity": "sha512-jML7s2NAzMWc//QSJ1a3prpk78cOPchGvXJsC3C6R6PSMoooztvRVQEz89gmBTBY1SPMaqo5teB4uNHPdetShQ=="
+      "version": "22.7.6",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.6.tgz",
+      "integrity": "sha512-/d7Rnj0/ExXDMcioS78/kf1lMzYk4BZV8MZGTBKzTGZ6/406ukkbYlIsZmMPhcR5KlkunDHQLrtAVmSq7r+mSw=="
     },
     "@types/qs": {
       "version": "6.9.16",
@@ -514,11 +514,6 @@
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
       "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw=="
     },
-    "undici-types": {
-      "version": "5.26.5",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-      "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA=="
-    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
diff --git a/packages/webapp/package.js b/packages/webapp/package.js
index d225d066db..9d5c36a641 100644
--- a/packages/webapp/package.js
+++ b/packages/webapp/package.js
@@ -13,7 +13,6 @@ Npm.depends({
   send: "1.1.0",
   "stream-to-string": "1.2.1",
   qs: "6.13.0",
-  'lodash.has': '4.5.2',
   "useragent-ng": "2.4.3",
   "tmp": "0.2.3",
 });
diff --git a/packages/webapp/webapp_server.js b/packages/webapp/webapp_server.js
index 5b3ef24edf..5849c90642 100644
--- a/packages/webapp/webapp_server.js
+++ b/packages/webapp/webapp_server.js
@@ -19,7 +19,6 @@ import {
 } from './socket_file.js';
 import cluster from 'cluster';
 import { execSync } from 'child_process';
-import has from 'lodash.has';
 
 var SHORT_SOCKET_TIMEOUT = 5 * 1000;
 var LONG_SOCKET_TIMEOUT = 120 * 1000;
@@ -622,7 +621,7 @@ WebAppInternals.staticFilesMiddleware = async function(
   };
 
   if (
-    has(additionalStaticJs, pathname) &&
+    pathname in additionalStaticJs &&
     !WebAppInternals.inlineScriptsAllowed()
   ) {
     serveStaticJs(additionalStaticJs[pathname]);