JavaScript, browsers, window close - send an AJAX request or run a script on window closing

Question

I\'m trying to find out when a user left a specified page. There is no problem finding out when he used a link inside the page to navigate away but I kind of need to mark up

Answer 1

I also wanted to achieve the same functionality & came across this answer from Felix(it is not guaranteed that a request initiated in one of these events will reach the server).

To make the request reach to the server we tried below code:-

onbeforeunload = function() {

    //Your code goes here.

    return "";
} 

We are using IE browser & now when user closes the browser then he gets the confirmation dialogue because of return ""; & waits for user's confirmation & this waiting time makes the request to reach the server.