Don't clear until render view is deleted for process id

lib/browser/objects-registry.js

@@ -19,17 +19,14 @@ class ObjectsRegistry {
   // registered then the already assigned ID would be returned.
   add (webContents, obj) {
     // Get or assign an ID to the object.
-    let id = this.saveToStorage(obj)
+    const id = this.saveToStorage(obj)
 
     // Add object to the set of referenced objects.
-    let webContentsId = webContents.getId()
+    const webContentsId = webContents.getId()
     let owner = this.owners[webContentsId]
     if (!owner) {
       owner = this.owners[webContentsId] = new Set()
-      // Clear the storage when webContents is reloaded/navigated.
-      webContents.once('render-view-deleted', () => {
-        this.clear(webContentsId)
-      })
+      this.registerDeleteListener(webContents, webContentsId)
     }
     if (!owner.has(id)) {
       owner.add(id)
@@ -39,6 +36,18 @@ class ObjectsRegistry {
     return id
   }
 
+  // Clear the storage when webContents is reloaded/navigated.
+  registerDeleteListener (webContents, webContentsId) {
+    const processId = webContents.getProcessId()
+    const listener = (event, deletedProcessId) => {
+      if (deletedProcessId === processId) {
+        webContents.removeListener('render-view-deleted', listener)
+        this.clear(webContentsId)
+      }
+    }
+    webContents.on('render-view-deleted', listener)
+  }
+
   // Get an object according to its ID.
   get (id) {
     const pointer = this.storage[id]
@@ -90,7 +99,7 @@ class ObjectsRegistry {
     pointer.count -= 1
     if (pointer.count === 0) {
       v8Util.deleteHiddenValue(pointer.object, 'atomId')
-      return delete this.storage[id]
+      delete this.storage[id]
     }
   }
 }