const { ipcRenderer, webFrame } = require('electron'); setImmediate(function () { if (window.location.toString() === 'bar://page/') { const windowOpenerIsNull = window.opener == null; ipcRenderer.send('answer', { nodeIntegration: webFrame.getWebPreference('nodeIntegration'), typeofProcess: typeof global.process, windowOpenerIsNull }); window.close(); } });