Avoid a form field when alerting the user is leaving the page without saving form changes...

Internet Explorer calling window.onbeforeunload on window.open and AJAX calls...

Troubleshoot of beforeunload confirm call...

How to trigger onbeforeunload with back button in an ajax based application?...

window.close() and the beforeunload event...

Why is jquery beforeunload showing a message even when returning null in Internet Explorer...

Javascript onbeforeunload return value...

How to set onbeforeunload status of window.opener from the child window?...

Checking for changes in a given form before unload/leave page...

Cancelling onBeforeUnload with addEventListener...

Submit form before user leaves page in javascript/jquery...

Make new line in window.onbeforeunload?...

How to execute ajax function onbeforeunload?...

onbeforeunload confirmation screen customization...

With the Javascript event onbeforeunload, is it possible to do anything other than an alert dialog?...

online quiz , onbeforeunload...

How to wait until jquery animation is finished using the onbeforeunload event?...

Can I prevent onbeforeunload from being called when clicking on an anchor tag?...

How to intercept the onbeforeunload event in a WebBrowser control?...

Multiple choices in beforeunload dialog...

onbeforeunload doesn't seem to always be trigerred...

window.onbeforeunload may fire multiple times...

How to prevent page navigation until ajax call is complete...

confirm before onbeforeunload...

Exclude submit button from beforeunload event...

onbeforeunload function not working properly...

Back button not triggering the method within the "beforeunload" in Chrome...

onbeforeunload in Opera...

Chrome / Firefox doesn't display images in objects shown in beforeunload event...

on unload event blocks images from rendering?...