| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <title>Subframe or popup</title> | |
| <script> | |
| "use strict"; | |
| (window.opener || window.parent).postMessage( | |
| { historyLength: history.length, locationHref: location.href }, | |
| "*" | |
| ); | |
| </script> | |
| <!-- | |
| This delays the load event, hopefully long enough that we can do whatever before-load action we're aiming for. | |
| --> | |
| <img src="/common/slow.py"> |