title: Dropzone js not passing file in Fallback Mode
body: <p>Dropzone works perfectly for everything except passing the file during <strong>fallback</strong> mode (IE9).  Drops work perfect in normal mode, all hidden inputs pass through post perfectly, and all hidden post values work during fallback mode.  </p>
  
  <p>The only problem is that $_FILES is empty when IE9 forces fallback mode.  I do not have any javascript on the page besides the dropzone.js file, as I understood this process was automatic, and according to everything I have read, it should be... right?</p>
  
  <p>Here is the code on the HTML side -- cleaned up some PHP elements for clarity:</p>
  
  <pre><code>&lt;form action="process/process_file_upload.php" method="post" class="dropzone"&gt;
  
  &lt;div class="fallback"&gt; 
      &lt;input name="file" type="file" multiple /&gt;
      &lt;input type="submit" value="Submit" style="margin-left:8px;"&gt;
      &lt;input type="hidden" name="calling_dept" value="home.php"&gt;    
  &lt;/div&gt;      
  
  &lt;input type="hidden" name="dept_id" value=5&gt;
  
  &lt;/form&gt;
  </code></pre>