| <!DOCTYPE html> |
| <body> |
| <script> |
| let forwardingIframe = document.createElement('iframe'); |
| let channelName = new URL(location).searchParams.get('broadcastchannel'); |
| forwardingIframe.src = |
| `http://{{host}}:{{ports[http][0]}}/portals/resources/portal-forward-with-broadcast.html?broadcastchannel=portals-post-message`; |
| forwardingIframe.onload = () => { |
| forwardingIframe.contentWindow.postMessage("loaded", "*"); |
| } |
| document.body.appendChild(forwardingIframe); |
| |
| window.portalHost.addEventListener("message", e => { |
| var message = { |
| origin: e.origin, |
| data: e.data, |
| sourceIsPortalHost: e.source === window.portalHost |
| }; |
| if (e.ports.length > 0) { |
| e.ports[0].postMessage(message); |
| e.ports[0].close(); |
| return; |
| } |
| forwardingIframe.contentWindow.postMessage(message, "*"); |
| }); |
| </script> |
| </body> |
