jQuery Simple Example

HTML

<script src="//www.addressfinder.co.nz/assets/v2/widget.js"></script>

JavaScript

$(document).ready(function() {
  
  	$(window).on('beforeunload', function() {
    	console.log('jquery on-beforeunload');
		});
    
    $(window).on('unload', function() {
    	console.log('jquery unload');
		});
  
  
  
});

window.onunload = function(){ console.log('window onunload'); };
window.onbeforeunload = function(){ console.log('window on-beforeunload'); };