| <!doctype html> | |
| <meta charset="utf-8"> | |
| <html> | |
| <p>This window should have no opener.</p> | |
| <script src="/common/PrefixedLocalStorage.js"></script> | |
| <script> | |
| var prefixedLocalStorage = new PrefixedLocalStorageResource({ | |
| close_on_cleanup: true | |
| }); | |
| function checkOpener () { | |
| return prefixedLocalStorage.setItem('openerIsNull', window.opener === null); | |
| } | |
| </script> | |
| <body onload="checkOpener()"> | |
| </body> | |
| </html> |