const { ipcRenderer, webFrame } = require('electron');

webFrame
  .executeJavaScript(`(() => {
  return Object(Symbol('a'));
})()`)
  .catch((err) => {
    // Considered safe if the object is constructed in this world
    ipcRenderer.send('executejs-safe', err);
  })
  .then(() => {
    ipcRenderer.send('executejs-safe', null);
  });
