chromium/third_party/blink/web_tests/external/wpt/fedcm/fedcm-opaque-rp-origin.https.html

<!DOCTYPE html>
<title>Federated Credential Management API network request tests.</title>
<link rel="help" href="https://fedidcg.github.io/FedCM">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>

<body>

<script type="module">
import {alt_request_options_with_mediation_required,
        set_alt_fedcm_cookie} from './support/fedcm-helper.sub.js';

// We do not use fedcm_test, because that tries to set document.cookie
// via set_fedcm_cookie, which is not allowed in a sandboxed document.
promise_test(async t => {
  // This test uses a `Content-Security-Policy: sandbox allow-scripts` header
  // to trigger an opaque origin.
  assert_equals(window.origin, 'null');
  await set_alt_fedcm_cookie();
  const cred = navigator.credentials.get(alt_request_options_with_mediation_required());
  return promise_rejects_dom(t, 'NetworkError', cred);
}, "Opaque RP origin should trigger a NetworkError.");

</script>