Capturing result of [removed] confirmation dialog

Question

Is there a way to capture to result of the window.onbeforeunload confirmation dialog like the one below from Stack Overflow (this happens when leaving the \'Ask Question\' p

Answer 1

How about this:

$( window ).bind( 'beforeunload' , function( event ) {
    setTimeout( function() {
        alert( 'Hi againe!' );
    } );
    return '';
} ).bind( 'unload', function( event ) {
    alert( 'Goodby!' );
} );