窗口位置获取URL

Question

我有代码巫婆获得短号网址 在网址中我想添加foloder /我得到link = hostname / folder / pathname

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<a id="Link" href="#">open link</a> 
    <script> 
      $(document).ready(function(){
       var newURL = window.location.hostname + "folder/" + window.location.pathname; 
       $("#Link").attr("href", newURL);  
      });
    </script>

此代码但无效