| <!DOCTYPE html> |
| <title>Prerender and activate prerender-until-script action page correctly</title> |
| <meta name="timeout" content="long"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/common/utils.js"></script> |
| <script src="/speculation-rules/prerender/resources/utils.js"></script> |
| <script src="../resources/utils.js"></script> |
| <body> |
| <script> |
| setup(() => assertSpeculationRulesIsSupported()); |
| |
| promise_test(async t => { |
| /* |
| Workflows: |
| 1. The initiator page (pus-initiator-page-template.html) |
| triggers the prerender and simultaneously fetches a signal_url. This |
| fetch is designed to hang on the server. |
| |
| 2. The prerendered page (pus-page-template.html) is allowed to fetch an |
| async script (which also hits the signal_url, but with |
| isprerendering=True). |
| |
| 3. When the server receives the request from the prerendered page, it |
| puts a token in its stash, which in turn unblocks the initiator's |
| hanging fetch. |
| |
| 4. The .then() block of the initiator's fetch then runs, navigating to |
| the prerendered page and causing activation. |
| |
| 5. The (previously blocked) inline script on the prerendered page then |
| executes, verifying that document.prerendering is false and sending the |
| result back to the main test page. |
| */ |
| |
| const uid = token(); |
| const bc = new PrerenderChannel('test-channel', uid); |
| |
| const gotMessage = new Promise(resolve => { |
| bc.addEventListener('message', e => { |
| resolve(e.data); |
| }, { |
| once: true |
| }); |
| }); |
| const url = `resources/pus-handler.py?type=main&uid=${uid}`; |
| window.open(url, '_blank', 'noopener'); |
| |
| const result = await gotMessage; |
| assert_equals(result, 'prerendering state when executing JS: false'); |
| |
| bc.close(); |
| }, `when prerender-until-script action prerenders a page, the script on that page should always be executed after activation.`); |
| </script> |
