Set page variable using webFrame.executeJavaScript

spec/api-browser-window-spec.js

@@ -1856,6 +1856,7 @@ describe('BrowserWindow module', function () {
             typeofProcess: 'undefined',
             typeofArrayPush: 'number',
             typeofFunctionApply: 'boolean',
+            typeofPreloadExecuteJavaScriptProperty: 'number'
           }
         })
         done()

spec/fixtures/api/isolated-preload.js

@@ -1,7 +1,9 @@
-const {ipcRenderer} = require('electron')
+const {ipcRenderer, webFrame} = require('electron')
 
 window.foo = 3
 
+webFrame.executeJavaScript('window.preloadExecuteJavaScriptProperty = 1234;')
+
 window.addEventListener('message', (event) => {
   ipcRenderer.send('isolated-world', {
     preloadContext: {

spec/fixtures/api/isolated.html

@@ -13,7 +13,8 @@
         typeofRequire: typeof require,
         typeofProcess: typeof process,
         typeofArrayPush: typeof Array.prototype.push,
-        typeofFunctionApply: typeof Function.prototype.apply
+        typeofFunctionApply: typeof Function.prototype.apply,
+        typeofPreloadExecuteJavaScriptProperty: typeof window.preloadExecuteJavaScriptProperty
       }, '*')
     </script>
   </head>