Ajax Post Onbeforeunload Doesn't Work

This code stores mouse movement coordinates in array and it should post it onbeforeunload. But it doesn't post. If I change name: moves to name: 'blabla' it works. Means that the p

Solution 1:

You can try this. It's a little example that I develop some months ago. In this case the coordinates are stored in a Text File, but you can replace this with an INSERT into a DataBase.

On the client Side put this:

var moves = ""; //Now an String to store the Coords

    $(document).ready(function(){
        //When you moves the mouse inside the Page then //concat the Coords into the String var and add a Line-Brak at the end
        $("html").mousemove(function(e){
            moves += (e.pageX + " x " + e.pageY + "\n");

        });

        //Here the magic happen: bind a function to onbeforeunload event that POST//the String to the server
        $(window).bind('beforeunload', function() {

            $.post("server.php",{name:moves});

        }); 

    });

Now you need a Page in the server side called server.php which contains

//Capture the String$cursorMoves = ($_POST['name']);

    $myFile = "testFile.txt";
    $fh = fopen($myFile, 'w');
    fwrite($fh, $cursorMoves);
    fclose($fh);

Solution 2:

onbeforeunload must return a string. However, the ajax request will be blocked by the dialog that is displayed. If the user accepts and leaves the page, it is likely that the request would be interrupted.

https://developer.mozilla.org/en/DOM/window.onbeforeunload

http://jsfiddle.net/sVU7K/1