$(window).unload is not firing

Question

I want to execute an action method when the user is abandoning a particular page using jQuery.

The page has the following code:

Answer 1

window.onbeforeunload=navigationError;

var dont_confirm_leave = 0; var leave_message = 'You sure you want to leave?';

function navigationError(e) 
  {
    if(dont_confirm_leave!==1)
    {
      if(!e) e = window.event;
      //e.cancelBubble is supported by IE - this will kill the bubbling process.
      e.cancelBubble = true;
      e.returnValue = leave_message;
      //e.stopPropagation works in Firefox.
      if (e.stopPropagation) 
      {
        e.stopPropagation();
        e.preventDefault();
      }

      //return works for Chrome and Safari
      return leave_message;
    }
  }