electron window open handle

index.ts

import { app, BrowserWindow } from 'electron'
import path from 'path'

app.whenReady().then(() => {
  const mainWindow = new BrowserWindow({
    webPreferences: {
      devTools: true,
      preload: path.resolve(__dirname, 'preload.js')
    }
  })

  mainWindow.webContents.setWindowOpenHandler(({ url }) => {
    if (url === 'about:blank') {
      return {
        action: 'allow',
        overrideBrowserWindowOptions: {
          frame: false,
          fullscreenable: false,
          backgroundColor: 'black',
          webPreferences: {
            preload: path.resolve(__dirname, 'preload2.js')
          }
        }
      }
    }
    return { action: 'deny' }
  })
  mainWindow.loadURL('about:blank')
})