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JavaScript

Rudy Tan
PLUS
Rudy Tan
Courses Plus Student 16,635 Points

How to create exit popup in javascript?

Hello everyone,

I am stuck on this problem. I want to create an exit popup that triggered whenever user try to leave the browser (either by clicking the close button or back button).

Thank you

1 Answer

Steven Parker
Steven Parker
228,991 Points

Handle the beforeUnload event.

Assuming you use jQuery:

$(window).on("beforeunload", function() { 
        return confirm("Do you really want to close?") 
    }
);
Rudy Tan
Rudy Tan
Courses Plus Student 16,635 Points

Thank you for the answer.

I tried it and it doesn't work in firefox.

Steven Parker
Steven Parker
228,991 Points

The MDN documentation for the event says:

Note: To combat unwanted pop-ups, browsers may not display prompts created in beforeunload event handlers unless the page has been interacted with, or even not at all.

Also:

Various browsers ignore the result of the event and do not ask the user for confirmation at all. The document will always be unloaded automatically. Firefox has a switch named dom.disable_beforeunload in about:config to enable this behaviour.