我用jQuery为浏览器的后退键绑定事件，即当用户点击了后退键时，处理我的事件响应。在网上查看了相关资料，发现下面这段代码在FireFox和Chrome浏览器都有效，唯独在IE浏览器失效。

$(function ($) {
    if (window.history && window.history.pushState) {
        $(window).on('popstate', function () {
            var hashLocation = location.hash;
            var hashSplit = hashLocation.split("#!/");
            var hashName = hashSplit[1];
            if (hashName !== '') {
                var hash = window.location.hash;
                if (hash === '') {
                    alert("Back button isn't supported. You are leaving this application on next clicking the back button");
                }
            }
        });
        window.history.pushState('forward', null, './#forward');
    }
});

所以如何在IE浏览器中监听后退键呢？请了解过相关内容的告知下，谢谢。