chromium/third_party/blink/web_tests/http/tests/credentialmanagement/credentialscontainer-preventsilentaccess-basics.html

<!DOCTYPE html>
<title>Credential Manager: preventSilentAccess() basics.</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script type="module">
import {MockCredentialManager} from './resources/mock-navigator-credentials.js';

const mockCredentialManager = new MockCredentialManager;
promise_test(_ => {
  return navigator.credentials.preventSilentAccess();
}, "navigator.credentials.preventSilentAccess() should succeed.");
</script>