tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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style-load-after-mutate.html (641B)

      1 <!DOCTYPE html>
      2 <title>The 'load' event on the style element should still fire after mutation</title>
      3 <link rel="help" href="https://crbug.com/1323319">
      4 <script src="/resources/testharness.js"></script>
      5 <script src="/resources/testharnessreport.js"></script>
      6 <script>
      7 promise_test(async () => {
      8  const style = document.createElement('style');
      9  document.head.appendChild(style);
     10  style.appendChild(document.createTextNode('@import url(/support/css-red.txt);'));
     11  style.appendChild(document.createTextNode('body {color: green; }'));
     12 
     13  // The 'load' event should fire.
     14  await new Promise(resolve => style.onload = resolve);
     15 });
     16 </script>