title: Large file upload - Request gets cancelled
body: <p>I am trying to upload video files of size 40-50mb. The progress bar freezes at a certain point and if i observe in my Networks tab on Google Chrome. The request gets cancelled and there is no error and the HTTP response header is empty.</p>
  
  <p>However this is working for both image/video files which are around 10-15mb.</p>
  
  <p>My code:</p>
  
  <pre><code>Dropzone.autoDiscover = false;
  var myDropzone = new Dropzone("#my-awesome-dropzone", {
          maxFiles: 1,
          parallelUploads: 100,
          acceptedFiles: '.3gp,.3gp2,.h261,.h263,.h264,.jpgv,.jpm,.jpgm,.mp4,.mp4v,.mpg4,.mpeg,.mpg,.mpe,.m1v,.m2v,.ogv,.qt,.mov,.fli,.flv,.mks,.mkv,.wmv,.avi,.movie,.smv,.g3,.jpeg,.jpg,.jpe,.png,.btif,.sgi,.svg,.tiff,.tif',
          previewTemplate: previewTemplate,
          previewsContainer: "#previews",
          autoProcessQueue: false,
          clickable: ".fileinput-button",
      });
  </code></pre>
  
  <p>P.S: It is not a server side issue as i have tried uploading without Dropzone and everything works smoothly.</p>