shell.openExternal test

index.html

<!-- Empty -->

main.js

// avoid interference from Electron Fiddle itself
delete process.env.GDK_BACKEND;

const {app, shell} = require("electron");

(async () => {
  await app.whenReady();
  console.log({GDK_BACKEND: process.env.GDK_BACKEND});
  await shell.openExternal("https://electronjs.org/");
  app.quit();
})();

preload.js

// Empty

renderer.js

// Empty

styles.css

/* Empty */