chromium/third_party/blink/web_tests/external/wpt/fetch/private-network-access/resources/fenced-frame-private-network-access-target.https.html

<!DOCTYPE html>
<meta charset="utf-8">
<script src="../../../fenced-frame/resources/utils.js"></script>
<title>Fenced frame target</title>
<script>
  const [frame_loaded_key] = parseKeylist();
  writeValueToServer(frame_loaded_key, 'loaded');
</script>