title: NodeJS sendFile with File Name in download
body: <p>I try to send file to client with this code:</p>
  
  <pre><code>router.get('/get/myfile', function (req, res, next) {
    res.sendFile("/other_file_name.dat");
  });
  </code></pre>
  
  <p>it's work fine but I need that when user download this file from the url:</p>
  
  <pre><code>http://mynodejssite.com/get/myfile
  </code></pre>
  
  <p>the filename into the browser must be "other_file_name.dat" and not "myfile".</p>