Question

window.onbeforeunload = function() {
    return $j.ajax({
        url: "/view/action?&recent_tracking_id=" + $recent_tracking_id + "&time_on_page=" + getSeconds()
    });
}

this what I have, but it returns an alert with [object Object]

how do I just execute the AJAX?

note: when I just don’t return anything, the server doesn’t show that it is receiving the ajax request.

Answer 1

You don’t need to return anything, just fire the ajax call.

window.onbeforeunload = function(e) {
    e.preventDefault();
    $j.ajax({ url: "/view/action?&recent_tracking_id=" + $recent_tracking_id + &time_on_page=" + getSeconds()
    });
}

If you are using jQuery, you can try binding to the .unload() event instead.