get-before-onload-and-during-dom-content-loaded.https.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /credential-management/fedcm-multi-idp/get-before-onload-and-during-dom-content-loaded.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Federated Credential Management API multi IDP get before onload and during DOMContentLoaded test.</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 {set_fedcm_cookie,

        set_alt_fedcm_cookie,

        request_options_with_mediation_required,

        alt_request_options_with_mediation_required,

        fedcm_select_account_promise} from '../support/fedcm-helper.sub.js';

let cookies_promise = Promise.all([set_fedcm_cookie(), set_alt_fedcm_cookie()]);

promise_test(async t => {

  let has_dom_content_loaded = false;

  let rejection;

  const dom_content_loaded = new Promise(resolve => {

      document.addEventListener('DOMContentLoaded', async () => {

          const second_cred = navigator.credentials.get(alt_request_options_with_mediation_required());

          rejection = promise_rejects_dom(t, 'NetworkError', second_cred);

          has_dom_content_loaded = true;

          resolve();

});

});

  assert_false(has_dom_content_loaded);

  const first_cred = navigator.credentials.get(request_options_with_mediation_required());

  await Promise.all([cookies_promise, dom_content_loaded]);

  assert_true(has_dom_content_loaded);

  await fedcm_select_account_promise(t, 0);

  const first = await first_cred;

  assert_equals(first.token, "token");

  return rejection;

}, "A `get` call before onload and a `get` call during DOMContentLoaded event should combine despite being called from different tasks.");

</script>