invalidate session ,when thebrowser was closed without logout

Question

I am trying to invalidate the session when the user closes the browser without logging out. I tried using generated event unLoad, but this event also fired when the user refreshes the page or presses the back button. So i want to invalidate the session when the browser closes.

If the user logs out normally I am invalidating the session using the code session.invalidate();, but if the user closes the browser the session is not invalidated until container specific time out. How can I achieve this?

Answer 1

You can add window unload hook,

window.onbeforeunload = function(event) {    
if (event) {
       //code to invalidate session
    }    
}