title: Dropzone.js stop from uploading
body: <p>I use <a href="http://www.dropzonejs.com/" rel="noreferrer">http://www.dropzonejs.com/</a> so that users can drag&amp;drop images in the browser, so that they can then interact with them using JavaScript, so no server-side is involved.</p>
  
  <p>How can I stop Dropzone.js from trying to upload the files?
  How can I then access the dragged files via JavaScript (create a new <code>&lt;img&gt;</code> tag containing that image)?</p>
  
  <p>Currently I get this error:</p>
  
  <p><img src="https://i.stack.imgur.com/2QeUI.jpg" alt="enter image description here"></p>
  
  <p>I create the dropzone like this:</p>
  
  <pre><code>        &lt;form   action="/file-upload"
                  class="dropzone"
                  id="my-awesome-dropzone"&gt;
          &lt;/form&gt;
  </code></pre>
  
  <p>I want the functionality to be the same as their demo on their website, where you can drag images but they are not uploaded.</p>
  
  <p>Thanks!</p>