rtingObserver((reports, observer) => resolve([reports, observer]),
                          {types: ['permissions-policy-violation']}).observe();
  });
  const xhr = new XMLHttpRequest();
  xhr.open("GET", document.location.href, false);
  xhr.send();
  check_report_format(await report);
}, "Sync-xhr report only mode");
    </script>
  </body>
</html>
