You can have the exit confirmation using window.onbeforeunload but there isn’t a way to find out which button the user clicked on. To quote an earlier response from jvenema from this thread: The primary purpose for the beforeunload is for things like allowing the users the option to save changes before their changes are lost. … Read more
If you are wanting to block something like POP up ads or something coming from a website you are showing in an IFRAME – it’s fairly easy. Make a framefilter.php and javascriptfilter.php which your iframe points to. You can modify it to meet your needs such as the onload blah blah and etc. But as/is … Read more
This works perfectly for me in both Chrome and Safari: <html><body><p>Test</p> <script>window.onbeforeunload = function() { return “Sure?”; }</script> </body></html> When I try to close the window, I get the prompt.
There are some actions which are not working in chrome, inside of the unload event. Alert or confirm boxes are such things. But what is possible (AFAIK): Open popups (with window.open) – but this will just work, if the popup blocker is disabled for your site Return a simple string (in beforeunload event), which triggers … Read more
Because it can’t be done. The new location is private/sensitive information. Nobody wants you to know which sites they visit when they leave your site.