Block browser in refresh time.

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I am using the code but default msg alert only display like"Changes you made may not be saved". Refresh my page that time how to display my own comments display alert in my browser.

What I have tried:

$(window).on('beforeunload', function () { return 'Please Stay On This Page'; });

Posted 5-Oct-17 20:20pm

Member 13448898

Updated 5-Oct-17 20:48pm

OriginalGriff

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David_Wimbley · Answer 1 · 2017-10-05T20:48:00

If i understand your question correctly, what your wanting to do is customize the "Change you've made may not be saved message".

This is now considered a security issue and is no longer allowed given the ability to customize the messages in a malicious way.

WindowEventHandlers.onbeforeunload - Web APIs | MDN[^]

javascript - How to show the "Are you sure you want to navigate away from this page?" when changes committed? - Stack Overflow[^]