| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/open-blank-host.js"></script> |
| <script> |
| function nextMessage(target) { |
| return new Promise((resolve, reject) => { |
| target.addEventListener('message', e => resolve(e), {once: true}); |
| }); |
| } |
| |
| promise_test(async () => { |
| assert_implements("HTMLPortalElement" in self); |
| const w = await openBlankPortalHost(); |
| try { |
| const portal = w.document.createElement('portal'); |
| portal.src = new URL('resources/simple-portal-adopts-predecessor.html', location.href); |
| w.document.body.appendChild(portal); |
| assert_equals((await nextMessage(portal)).data, 'ready'); |
| |
| // Intentionally don't await activation finishing; this should work |
| // even if activation is ongoing. |
| let activateDone = portal.activate(); |
| |
| // TODO(jbroman): It shouldn't be necessary to reinsert the element to |
| // navigate it again, either. |
| w.document.body.removeChild(portal); |
| portal.src = new URL('resources/simple-portal.html', location.href); |
| w.document.body.appendChild(portal); |
| assert_equals((await nextMessage(portal)).data, 'ready'); |
| |
| // But activation should still resolve, eventually. |
| await activateDone; |
| } finally { |
| w.close(); |
| } |
| }, "Tests that a portal element can be fully reused after activate has detached it"); |
| </script> |
