| <!DOCTYPE html> |
| <title>Prerendering cannot invoke the Screen Capture API</title> |
| <meta name="variant" content="?target_hint=_self"> |
| <meta name="variant" content="?target_hint=_blank"> |
| <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()); |
| |
| const params = new URLSearchParams(window.location.search); |
| const target_hint = params.get('target_hint'); |
| const rule_extras = {target_hint}; |
| |
| 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 Screen Capture API. |
| // This API is activated-gated so it's expected to fail: |
| // https://wicg.github.io/nav-speculation/prerendering.html#implicitly-restricted |
| startPrerendering( |
| `resources/screen-capture.https.html?uid=${uid}`, rule_extras); |
| const result = await gotMessage; |
| assert_equals(result, 'InvalidStateError'); |
| bc.close(); |
| }, `prerendering pages should not be able to invoke the Screen Capture API`); |
| </script> |
