File: anchor-remove-href.html

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<!DOCTYPE html>
<link rel=author href="mailto:jarhar@chromium.org">
<link rel=help href="https://issues.chromium.org/issues/443585794">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<a href="#">anchor tag</a>

<script>
promise_test(async () => {
  const anchor = document.querySelector('a');
  anchor.focus();
  assert_equals(document.activeElement, anchor,
    'anchor should be focused at the start of the test.');

  anchor.removeAttribute('href');
  anchor.setAttribute('tabindex', '0');
  assert_equals(document.activeElement, anchor,
    'anchor should be focused after removing href.');

  await new Promise(requestAnimationFrame);
  await new Promise(requestAnimationFrame);

  assert_equals(document.activeElement, anchor,
    'anchor should still be focused after a double rAF.');
}, 'anchor element should remain focused after removing href attribute.');
</script>