| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| promise_test(async () => { |
| var portal = document.createElement("portal"); |
| portal.src = "http://{{hosts[alt][www]}}:{{ports[http][0]}}/portals/resources/simple-portal.html"; |
| var receiveMessage = new Promise((resolve, reject) => { |
| portal.onmessage = e => { resolve(e.data) }; |
| }); |
| document.body.appendChild(portal); |
| var message = await receiveMessage; |
| assert_equals(message, "loaded"); |
| }); |
| </script> |
| </body> |
