attempt-fetch.html | Explore in Territory

<!DOCTYPE html>
<title>Attempt Fetch</title>
<body>
  <script>
    // This page is loaded into frame in a fenced frame tree. This will attempt
    // to make a GET request after network access in the fenced frame tree has
    // been revoked, and then postMessage() the result of that attempt to the
    // parent. If loaded into a fenced frame, postMessage() won't work, and the
    // test instead checks to see if the request made it to the key-value-store
    // endpoint.
    onload = async (event) => {
      const key = new URL(location.href).searchParams.get("key");
      const message = "hello";
      const fetch_url = new URL(
          '/wpt_internal/fenced_frame/resources/key-value-store.py' +
          `?key=${key}&value=${message}`, location.href);
      try {
        await fetch(fetch_url, {'mode': 'no-cors'});
        window.parent.postMessage("PASS");
      } catch (error) {
        window.parent.postMessage("FAIL");
      }
    }
  </script>
</body>

chromium/third_party/blink/web_tests/wpt_internal/fenced_frame/resources/attempt-fetch.html