chromium/third_party/blink/web_tests/http/tests/priorities/resources/preload/as-font.html

<script src="../common.js"></script>
<script>
  observeAndReportResourceLoadPriority(new URL('../../../resources/Ahem.ttf', location));
</script>

<link rel="preload" as="font" href=../../../resources/Ahem.ttf type="font/ttf" onload="reportLoaded()" onerror="reportFailure()">