auto-expand-details-text-fragment.html

<!DOCTYPE html>
<script src="/scroll-to-text-fragment/stash.js"></script>

<!-- This test is navigated to with the fragment #:~:text=foo -->

<body>
  <div style="height: 4000px;">spacer</div>
  <details>
    <div>foo</div>
  </details>
  <script>
    requestAnimationFrame(() => {
      requestAnimationFrame(() => {
        const results = {};
        // This should be true. The details element should be opened by
        // ScrollToTextFragment because it has matching text.
        results.detailsHasOpenAttribute = document.querySelector('details').hasAttribute('open');
        // This should be greater than zero. The page should be scrolled down
        // to the matching target.
        results.pageYOffsetAfterRaf = window.pageYOffset;

        params = new URLSearchParams(window.location.search);
        stashResultsThenClose(params.get('key'), results);
      });
    });
  </script>
</body>

chromium/third_party/blink/web_tests/external/wpt/html/rendering/the-details-element/resources/auto-expand-details-text-fragment.html