A simple pushState plugin that falls back to hashChange (only for going back)

backPushState.js

/**
 * @license backPushState.js
 * A simple pushState library that falls back to hashChange (only for going back)
 * Copyright (c) 2011 timmy willison
 * Dual licensed under the MIT and GPL licenses.
 * http://timmywillison.com/licence/
 */

define([ 'jquery' ],
function( $ ) {
	"use strict";
	return (function( window, document, history, location ) {
		if ( history && history.pushState ) {
			return function( title, url ) {
				var curPath = document.location.pathname;
				history.pushState( null, title, url );
				document.title = title;
				$(window).bind('popstate', function() {
					document.location.href = curPath;
				});
			};
		}
		location = document.location;
		return function( title, url ) {
			var curPath = location.pathname;
			url = '#!/' + url.replace( curPath, '' ).replace(/^\//, '');
			location.hash = url;
			document.title = title;
			setTimeout(function() {
				$(window).one('hashchange', function() {
					location.href = curPath;
				});
			}, 0);
		};
	})( window, window.document, window.history );
});