split-app.js

'use strict';

document.head.innerHTML = '';
document.body.innerHTML = '';

[0, 1].forEach((i) => {
  const iframe = document.createElement('iframe');
  iframe.src = location.href;
  iframe.style.position = 'fixed';
  iframe.style.left = (i === 0 ? '0' : '50vw');
  iframe.style.overflow = 'auto';
  iframe.style.top = '0';
  iframe.style.width = '50vw';
  iframe.style.height = '100vh';
  document.body.appendChild(iframe);
});