testing/web-platform/tests/html/dom/render-blocking/element-render-blocking-031.html


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<!DOCTYPE html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/utils.js"></script>
<title>`link rel=expect` supports dynamically changed &lt;a name&gt;</title>

<link rel=expect href="#second" blocking="render">
<script>
async_test((t) => {
  requestAnimationFrame(() => {
    t.step(() => assert_true(!!document.getElementsByName("second")));
    t.step(() => assert_false(!!document.getElementById("last")), "the second element should already unblock rendering");
    t.done();
  });
}, "blocking defers frames until full parsing");
</script>
</head>
<body>
  <div id="first"></div>
  <script>
          generateParserDelay();
  </script>
  <a id="fold"></a>
  <script>
          document.getElementById("fold").setAttribute("name", "second");
  </script>
  <script>
          generateParserDelay();
  </script>
  <div id="last"></div>
</body>