old_contents: // #DROPZONE#
  // This script implements the dropzone settings
  'use strict';
  
  /* global Dropzone */
  (function ($) {
      $(function () {
          var dropzoneSelector = $(dropzoneSelector);
          var dataAction = dropzoneSelectordata('action');
  
          if (dropzoneSelector.length && Dropzone) {
              Dropzone.autoDiscover = false;
              new Dropzone('.js-dropzone', {
                  url: dataAction,
                  paramName: 'file', // The name that will be used to transfer the file
                  maxFilesize: 2, // MB
                  addRemoveLinks: true,
                  maxFiles: 1,
                  maxfilesexceeded: function (file) {
                      this.removeAllFiles();
                      this.addFile(file);
                  }
              });
          }
      });
  })(jQuery);
  
new_contents: // #DROPZONE#
  // This script implements the dropzone settings
  'use strict';
  
  /* global Dropzone */
  (function ($) {
      $(function () {
          var dropzoneSelector = $('.js-dropzone');
          var dataAction = dropzoneSelectordata('action');
  
          if (dropzoneSelector.length && Dropzone) {
              Dropzone.autoDiscover = false;
              new Dropzone('.js-dropzone', {
                  url: dataAction,
                  paramName: 'file', // The name that will be used to transfer the file
                  maxFilesize: 2, // MB
                  addRemoveLinks: true,
                  maxFiles: 1,
                  maxfilesexceeded: function (file) {
                      this.removeAllFiles();
                      this.addFile(file);
                  }
              });
          }
      });
  })(jQuery);
  
subject: fix selector