title: How to trigger the Dropzone.js' default file upload input?
body: <p>I'd like to know how to trigger the Dropzone.js' default file upload input?
  It's not as simple like this:</p>
  
  <pre><code>window.dropCloud = = new Dropzone("#dropCloud", {...});
  $(window.dropCloud.clickableElements[0]).trigger("click");
  </code></pre>
  
  <p>Now i don't have any ideas. Anyway the whole <code>#dropCloud</code> container is hidden, if it matters.</p>