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chromium/third_party/blink/web_tests/external/wpt/html/browsers/browsing-the-web/scroll-to-fragid/target-pseudo-after-reinsertion.html 

<!DOCTYPE html>
<link rel=author href="mailto:[email protected]">
<link rel=help href="https://bugs.chromium.org/p/chromium/issues/detail?id=1252507">
<link rel=help href="https://html.spec.whatwg.org/multipage/browsing-the-web.html#target-element">
<link rel=help href="https://github.com/whatwg/html/issues/10029">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<div id=target>target</div>

<script>
test(() => {
  const target = document.getElementById('target');
  window.location.href = '#target';
  assert_equals(document.querySelector(':target'), target,
    ':target should match before reinsertion.');

  target.remove();
  document.body.appendChild(target);
  assert_equals(document.querySelector(':target'), target,
    ':target should match after reinsertion.');
}, ':target should match the target element even after it is removed and reinserted.');
</script>