Cert error

main.js

// Modules to control application life and create native browser window
const { app, BrowserWindow, WebContentsView } = require('electron')

function createWindow () {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 1000,
    height: 800
  })

  const tab = new WebContentsView({
    webPreferences: {
      allowRunningInsecureContent: false,
      nodeIntegrationInSubFrames: false,
      webSecurity: true,
      sandbox: true,
      autoplayPolicy: 'document-user-activation-required',
      contextIsolation: true,
      nodeIntegration: false,
      spellcheck: true,
      transparent: false,
      partition: 'persist:test'
    }
  })

  mainWindow.contentView.addChildView(tab)

  const { width, height } = mainWindow.getBounds()
  tab.setBounds({ x: 0, y: 0, width, height })

  tab.webContents.on('certificate-error', (_evt, url, _err, _cert, callback, isMainFrame) => {
    console.log('cert-err', url, isMainFrame)
    callback(isMainFrame)
  })

  tab.webContents.on('dom-ready', () => console.log('loaded'))

  tab.webContents.navigationHistory.restore({
    entries: [{
      url: 'https://expired.badssl.com/',
      title: ''
    }],
    index: 0
  })
}

// 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.whenReady().then(() => {
  createWindow()

  app.on('activate', function () {
    // On macOS 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 (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') app.quit()
})

// 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.

package.json

{
  "name": "four-psychology-prefer-7zkbe",
  "productName": "four-psychology-prefer-7zkbe",
  "description": "My Electron application description",
  "keywords": [],
  "main": "./main.js",
  "version": "1.0.0",
  "author": "filip.mosner",
  "scripts": {
    "start": "electron ."
  },
  "dependencies": {},
  "devDependencies": {
    "electron": "35.1.4"
  }
}