<!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="/speculation-rules/prerender/resources/utils.js"></script> <body> <script> setup(() => assertSpeculationRulesIsSupported()); const PAGE_URL = 'resources/windowclient-navigate-on-iframe.html'; const WORKER_URL = 'resources/windowclient-navigate-worker.js'; const SCOPE = 'resources/'; const SAME_ORIGIN_DESTINATION = 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 => { resolve(e.data); }, { 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)`. window.open( `${PAGE_URL}?navigationUrl=${SAME_ORIGIN_DESTINATION}&uid=${uid}`, '_blank', 'noopener'); 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'); </script> </body>