title: How to change thumbnail src value in Dropzone.js?
body: <p>I'm using Dropzone.js with jQuery to upload files to the server. Afer file uploaded I'm generating a "server-side" filename with the current url.</p>
  
  <pre><code>$('.dropzone').dropzone({
      init: function() {
          this.on('success', function(file) {
              var newname = generateServersideFilename(file.name); // this is my function
              // here I need a help to find the thumbnail &lt;img&gt; to set the 'src' attribute
          }
      }
  });
  </code></pre>
  
  <p>How can I find the current thumbnail <code>img</code> to set the <code>src</code> attribute?</p>