| <!DOCTYPE html> |
| <body> |
| <script> |
| var portal1 = document.createElement("portal"); |
| portal1.src = "simple-portal.html" |
| var portal2 = document.createElement("portal"); |
| portal2.src = "simple-portal.html" |
| |
| var waitForPortalToLoad = portal => new Promise((resolve, reject) => { |
| portal.onload = resolve; |
| }); |
| |
| Promise.all([waitForPortalToLoad(portal1), |
| waitForPortalToLoad(portal2)]).then(() => { |
| portal1.activate(); |
| portal2.activate().catch(e => window.opener.postMessage(e.name, "*")); |
| }); |
| |
| document.body.append(portal1); |
| document.body.append(portal2); |
| </script> |
| </body> |
