| <!DOCTYPE html> |
| <title>Construction of Web Workers in cross-origin iframe is deferred</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="/common/dispatcher/dispatcher.js"></script> |
| <script src="../resources/utils.js"></script> |
| <script src="resources/utils.js"></script> |
| |
| <!-- This is a regression test for https://crbug.com/1424250 --> |
| <body> |
| <script> |
| setup(() => assertSpeculationRulesIsSupported()); |
| |
| promise_test(async t => { |
| const uid = token(); |
| const bc = new PrerenderChannel('test-channel', uid); |
| const gotMessage = new Promise(resolve => { |
| bc.addEventListener('message', e => { |
| resolve(e.data); |
| }, {once: true}); |
| }); |
| |
| // This cross-origin iframe starts a dedicated worker and sends a message to |
| // this document once loading the worker is completed. |
| const crossOriginUrl = |
| new URL(`resources/workers-in-cross-origin-iframe.html?uid=${uid}`, |
| get_host_info()['HTTPS_REMOTE_ORIGIN'] + |
| window.location.pathname); |
| |
| // Start prerendering. Loading the cross-origin iframe in a prerendered page |
| // will be deferred until prerender activation. |
| const {exec, activate} = await create_prerendered_page(t); |
| await exec(crossOriginUrl => { |
| const iframe = document.createElement('iframe'); |
| iframe.src = crossOriginUrl; |
| document.body.appendChild(iframe); |
| }, [crossOriginUrl.href]); |
| |
| // Activate. This resumes loading the cross-origin iframe. |
| await activate(); |
| |
| // Wait for the completion of the worker creation. |
| assert_equals(await gotMessage, 'Success'); |
| }, "Dedicated workers in cross-origin iframe should be loaded after " + |
| "activation"); |
| </script> |
