| ALERT: window.onload | |
| ALERT: window.onpageshow, target = [object HTMLDocument], persisted = false | |
| CONSOLE MESSAGE: Use of window.alert is not allowed while unloading a page. | |
| ALERT: window.onpageshow, target = [object HTMLDocument], persisted = true | |
| Test pageshow/pagehide event behavior when navigating back to an cached page. |