| <!DOCTYPE html> |
| <title>Prerendering cannot invoke the Idle Detection API</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="../resources/utils.js"></script> |
| <script src="resources/utils.js"></script> |
| |
| <body> |
| <script> |
| setup(() => assertSpeculationRulesIsSupported()); |
| |
| promise_test(async t => { |
| const uid = token(); |
| const bc = new PrerenderChannel('prerender-channel', uid); |
| |
| const gotMessage = new Promise(resolve => { |
| bc.addEventListener('message', e => { |
| resolve(e.data); |
| }, { |
| once: true |
| }); |
| }); |
| |
| // Start prerendering a page that attempts to invoke the Idle Detection API. |
| // This API is activation-gated so it's expected to fail: |
| // https://wicg.github.io/nav-speculation/prerendering.html#activation-gated |
| startPrerendering(`resources/idle-detection.https.html?uid=${uid}`); |
| const result = await gotMessage; |
| assert_equals(result, 'NotAllowedError'); |
| bc.close(); |
| }, `prerendering pages should not be able to invoke the Idle Detection API`); |
| </script> |
