Download files from Dropbox using SDK Javascript

Hi Greg

I did a new html file, and I introduced the code and apparently works. In my application doesn't show error, just the text File Downloaded after push the button, but the I can't get the file. I searched in folder downloads and nothing appears. The code is the same, adding your last comments:

<script type="text/javascript">
  $(document).ready(function(){
    $('#btnguardar').click(function(){
      var ACCESS_TOKEN = ""; // Here the access token key
      var dbx = new Dropbox.Dropbox({ accessToken: ACCESS_TOKEN });
      
   
   dbx.filesDownload({ path: '/5. Productos de las LGAC/Estudiantes/Generación 2018-2020/Artículos/Ricardo-Derechos.pdf'})

        .then(function(response){
           var results = document.getElementById('results');
           results.appendChild(document.createTextNode('File Downloaded!'));

           console.log(response);
       
        })
        .catch(function (error) {
        console.error(error);
    });
    return false;
})       
  });

</script>

 And I am using at the begining this:

<link rel="stylesheet" media="screen" href="css/bootstrap.min.css">
    <link rel="stylesheet" media="screen" href="css/stylo.css">
    <script src="js/jquery-3.2.1.js"></script>
    <script src="js/bootstrap.js"></script>
    <script src="https://unpkg.com/dropbox/dist/Dropbox-sdk.min.js"></script>

The next image is the result of push the button.

Regards