| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| promise_test(async t => { |
| assert_precondition("HTMLPortalElement" in self); |
| let portal = document.createElement('portal'); |
| document.body.appendChild(portal); |
| t.add_cleanup(() => { document.body.removeChild(portal); }); |
| |
| await promise_rejects_dom(t, 'InvalidStateError', portal.activate()); |
| }, "A portal that has never been navigated cannot be activated"); |
| |
| promise_test(async t => { |
| assert_precondition("HTMLPortalElement" in self); |
| let portal = document.createElement('portal'); |
| document.body.appendChild(portal); |
| t.add_cleanup(() => { document.body.removeChild(portal); }); |
| |
| // We use a status of 204 (No Content) as that couldn't possibly mature. |
| portal.src = "resources/204-no-content.asis"; |
| await promise_rejects_dom(t, 'InvalidStateError', portal.activate()); |
| }, "A portal that has not completed an initial navigation cannot be activated"); |
| </script> |
| </body> |
