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chromium/third_party/blink/web_tests/external/wpt/accessibility/crashtests/aria-owns-fallback-content.html 

<html class="test-wait">
<body>
<div aria-owns="id1"></div>
<video>
  <mark>
    <span id='id1'></span>
  </mark>
</video>
</body>
<script>
window.onload = () => {
  requestAnimationFrame(() => {
    requestAnimationFrame(() => {
      document.documentElement.style.display = 'none';
      document.documentElement.className = '';
    });
  });
}
</script>