window close confirm behavior

Question

I am using window.onbeforeunload = function() { return 'Ask question?'; };

to prevent accidentally window close without saving data.

Also the same page the form have a submit button (save button.)

I cannot figure it out how to avoid confirmation when submit button is press. Or maybe some kind of auto confirmation.

Answer 1

what you can do is to redefine the onsubmit event of your form by removing the onbeforeunload event before te sumbit itself:

document.getElementById("yourFormId").onsubmit = function(){
    window.onbeforeunload = null;
    this.submit();
}