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<!DOCTYPE html>
<title>Federated Credential Management API multi IDP get before and during onload 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_window_loaded = false;
  let rejection;
  const window_loaded = new Promise(resolve => {
    window.addEventListener('load', async () => {
      const second_cred = navigator.credentials.get(alt_request_options_with_mediation_required());
      rejection = promise_rejects_dom(t, 'NetworkError', second_cred);
      has_window_loaded = true;
      resolve();
    });
  });
  assert_false(has_window_loaded);
  const first_cred = navigator.credentials.get(request_options_with_mediation_required());
  await Promise.all([cookies_promise, window_loaded]);

  // Select first account from the first get() call.
  await fedcm_select_account_promise(t, 0);
  assert_true(has_window_loaded);
  const first = await first_cred;
  assert_equals(first.token, "token");
  return rejection;
}, "A `get` call before onload and a `get` call during onload should be combined.");

</script>