how to diable window.onbeforeunload alert when timer is timedout

Question

I have used window.onbeforeunload() to display an alert when the user navigates away from the page and this works fine,

  jQuery(window).bind('beforeunload', function (e) {
        var message = "Attention:";
        e.returnValue = message;
        return message;
    });

In one of the views in my project I have used a timer.The problem is that,when the timer is timed out an alert is displayed and it is followed by the window.onbeforeunload() alert.

I want only the timer alert and not both to be displayed on timer timeout.

How can I achieve this?

This is the browser behavior as `beforeunload` is fired on alert. You can override this by using `unbind()` and then `bind()` again. — Shaunak D, Apr 07 '15 at 07:10

score 0 · Accepted Answer · answered Apr 07 '15 at 07:13

0

As Shaunak commented, you should before unbind your "hardcoded" beforeunload function definition :

jQuery(window).unbind();

and then redefine it:

jQuery(window).bind('beforeunload', function (e) {
        var message = "Attention:";
        e.returnValue = message;
        return message;
    });

answered Apr 07 '15 at 07:13

kiks73

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Yes this works,but why dint it work when I did `$(window).off('beforeunload');` OR `window.onbeforeunload=null` – Sumedha Vangury Apr 07 '15 at 07:24
Try: `$(document).ready(function(){ $(window).off('beforeunload', function(){ }); });` – kiks73 Apr 07 '15 at 07:28

score 0 · Answer 2 · answered Apr 07 '15 at 07:13

to unbind an event, you need a reference to original handler.

please see below.

var func = function(e) {
  var message = "Attention:";
  e.returnValue = message;
  return message;
};

jQuery(window).bind('beforeunload', func);

// Unbind 'beforeunload' after 10 seconds
setTimeout(function() {
  jQuery(window).unbind('beforeunload', func);
  alert('beforeunload unbound');
}, 10000);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

how to diable window.onbeforeunload alert when timer is timedout

2 Answers2