| <script> | |
| var haveCalledDone = false; | |
| window.addEventListener('beforeunload', function() { | |
| if (!haveCalledDone) { | |
| haveCalledDone = true; | |
| opener.done(); | |
| } | |
| }, false); | |
| </script> | |
| <iframe sandbox="allow-scripts allow-top-navigation" | |
| src="close-top.html"> | |
| </iframe> |