chromium/third_party/blink/renderer/core/testing/data/prerender/any_prerender.html

<html>
<head></head>
<body>
<script>
function createLinkRelPrerender(url) {
  const link = document.createElement('link');
  link.rel = "prerender";
  link.href = url;
  document.body.appendChild(link);
}
</script>
</body>
</html>