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

<!DOCTYPE html>
<meta charset="utf-8">
<script src="../../../fenced-frame/resources/utils.js"></script>
<title>Fetcher</title>
<script>
  const url = new URL(location.href).searchParams.get("url");
  const mode = new URL(location.href).searchParams.get("mode");
  const method = new URL(location.href).searchParams.get("method");
  const [error_token, ok_token, body_token, type_token] = parseKeylist();

  fetch(url, {mode: mode, method: method})
      .then(async function(response) {
        const body = await response.text();
        writeValueToServer(ok_token, response.ok);
        writeValueToServer(body_token, body);
        writeValueToServer(type_token, response.type);
        writeValueToServer(error_token, "");
      })
      .catch(error => {
        writeValueToServer(ok_token, "");
        writeValueToServer(body_token, "");
        writeValueToServer(type_token, "");
        writeValueToServer(error_token, error.toString());
      });
</script>