How can I override the OnBeforeUnload dialog and replace it with my own?

How can I override the OnBeforeUnload dialog and replace it with my own?

javascript jquery onbeforeunload

javascript

How to show the "Are you sure you want to navigate away from this page?" when changes committed?

javascript html message onbeforeunload confirm

javascript

Prevent a webpage from navigating away using JavaScript

javascript onbeforeunload

javascript

window.onbeforeunload not working on the iPad?

javascript ios ipad onbeforeunload

javascript

How to prevent closing browser window?

javascript browser window onbeforeunload

javascript

Is there any way to use window.onbeforeunload on Mobile Safari for iOS devices?

javascript iphone ios mobile-safari onbeforeunload

javascript

Difference between onbeforeunload and onunload

javascript ipad safari mobile-safari onbeforeunload

javascript

Is there an alternative method to use onbeforeunload in mobile safari?

javascript ios mobile-safari onbeforeunload

javascript

Crossbrowser onbeforeunload?

javascript cross-browser onbeforeunload

javascript

window.onbeforeunload - Only show warning when not submitting form [duplicate]

javascript jquery onbeforeunload

javascript

jQuery beforeunload custom pop up window for leaving a page

javascript jquery popup onbeforeunload

javascript

Way to know if user clicked Cancel on a Javascript onbeforeunload Dialog?

javascript jquery dom-events onbeforeunload

javascript

How to disable beforeunload action when user is submitting a form?

javascript jquery ajax onbeforeunload

javascript

Browser waits for ajax call to complete even after abort has been called (jQuery)

javascript jquery xmlhttprequest onbeforeunload abort

javascript

JavaScript + onbeforeunload

javascript onbeforeunload

javascript