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Test Info:

<!DOCTYPE html>
<title>WindowClient.navigate() to same-origin url in a prerendered iframe</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="/common/utils.js"></script>
<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
<script src="../resources/utils.js"></script>
<script src="resources/utils.js"></script>
setup(() => assertSpeculationRulesIsSupported());
const PAGE_URL = 'resources/windowclient-navigate-on-iframe.html';
const WORKER_URL = 'resources/windowclient-navigate-worker.js';
const SCOPE = 'resources/';
get_host_info()['HTTPS_ORIGIN'] + base_path() + 'resources/empty.html';
promise_test(async t => {
const uid = token();
const registration = await service_worker_unregister_and_register(
t, `${WORKER_URL}?uid=${uid}`, SCOPE);
t.add_cleanup(() => registration.unregister());
await wait_for_state(t, registration.installing, 'activated');
const bc = new PrerenderChannel('test-channel', uid);
t.add_cleanup(_ => bc.close());
const gotMessage = new Promise(resolve => {
bc.addEventListener('message', e => {
}, {
once: true
// PAGE_URL starts a prerender of a page that makes an iframe, then asks the
// service worker to navigate the iframe to `navigationUrl` via
// `WindowClient.navigate(url)`.
const navigationResult = await gotMessage;
assert_equals(navigationResult, 'navigate() succeeded',
'should succeed to finish navigation test');
// Send a close signal to PrerenderEventCollector on the prerendered page.
new PrerenderChannel('close', uid).postMessage('');
}, 'WindowClient.navigate() to a same-origin URL on a prerendered iframe ' +
'should succeed');