| <!DOCTYPE html> | |
| <body> | |
| <portal src="simple-portal-adopts-and-activates-predecessor.html"> | |
| <script> | |
| function activate() { | |
| var portal = document.querySelector("portal"); | |
| portal.activate().then(() => document.body.removeChild(portal)); | |
| } | |
| var count = 0; | |
| window.onportalactivate = e => { | |
| ++count; | |
| if (count == 1) { | |
| e.adoptPredecessor().activate(); | |
| } else { | |
| window.opener.postMessage("done", "*"); | |
| } | |
| }; | |
| </script> | |
| </body> |