| <!DOCTYPE html> |
| <body> |
| <script> |
| async function handleMessage(e) { |
| if (e.data == "focus" || e.data == "focus-update-active-element") { |
| let iframe = document.querySelector("iframe"); |
| iframe.contentWindow.postMessage(e.data, "*"); |
| } |
| } |
| |
| if (window.portalHost) |
| window.portalHost.onmessage = handleMessage; |
| |
| window.onportalactivate = e => { |
| var portal = e.adoptPredecessor(); |
| document.body.appendChild(portal); |
| portal.onmessage = handleMessage; |
| } |
| |
| window.onmessage = e => { |
| if (window.portalHost) |
| window.portalHost.postMessage(e.data); |
| else |
| document.querySelector("portal").postMessage(e.data); |
| } |
| </script> |
| <iframe src="http://{{hosts[alt][www]}}:{{ports[http][0]}}/portals/resources/focus-page-with-button.html"></iframe> |
| </body> |
