title: Jquery file uploader blueimp, Unexpected Token/Character
body: <p>First of all let me tell you that I've already searched for some answers, and while it helped me out a bit, my main problems remain unresolved.</p>
  
  <p>I used the file uploader (Version 9.8.0) @ <a href="http://blueimp.github.io/jQuery-File-Upload/">http://blueimp.github.io/jQuery-File-Upload/</a></p>
  
  <p>(1st problem) <br>
  Everything seems to work fine until I start uploading. After it finishes uploading, it says the following error for each image (instead of the "upload successful" message).</p>
  
  <p>On Google Chrome it says: <strong>"SyntaxError: Unexpected token &lt;"</strong> <br>
  on Mozilla FireF. it says: <strong>"SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data"</strong></p>
  
  <p>I searched some solutions but I can't figure out how to apply these solutions. And btw, it adds the image, despite the error.</p>