监听浏览器“返回”按钮跳转指定URL

onpopstate事件，比如：跳转到百度

<script>
    window.onpopstate = function() {
        window.location.href = 'http://www.baidu.com';
    };
    //加入以下俩行代码，才能触发
    window.history.pushState('forward', null, '#');
    window.history.forward(1);
</script>