| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/speculation-rules/prerender/resources/utils.js"></script> |
| <script> |
| |
| assert_true(document.prerendering); |
| |
| async function invokeScreenCaptureAPI(){ |
| const bc = new PrerenderChannel('prerender-channel'); |
| |
| try { |
| await navigator.mediaDevices.getDisplayMedia(); |
| bc.postMessage('unexpected success'); |
| } catch (err){ |
| bc.postMessage(err.name); |
| } finally { |
| bc.close(); |
| } |
| } |
| |
| invokeScreenCaptureAPI(); |
| |
| </script> |
