Transloadit checkFileTypes

transloadit2.js

  // My HTML specifies accept="" on the input
 
  // I add this additional function to transloadit2.js
  Uploader.prototype.checkFileTypes = function() {
    var self = this;
    var acceptedTypes = self.$files.attr('accept');

    if (!acceptedTypes) {
      return true;
    }
    acceptedTypes = acceptedTypes.split(',');

    self.$files = self.$files.filter(function() {
      var fileExt = this.value.split('.').pop().toLowerCase();
      for (var i = 0; i < acceptedTypes.length; i++) {
        if (fileExt == acceptedTypes[i].split('/')[1]) {
          return true;
        } 
      }
      self._options.onError('Sorry, we don\'t accept ' + fileExt + ' files.');
      return false;
    });
  };

  // I modified my init a bit
  Uploader.prototype.init = function($form, options) {
    this.$form = $form;
    this.options($.extend({}, OPTIONS, options || {}));

    var self = this;
    $form.find('input[type="file"]').on('change', function() {
      self.validate();
      self.detectFileInputs();
      self.checkFileTypes();
      if (!self._options['processZeroFiles'] && self.$files.length === 0) {
        self.submitForm();
      } else {
        self._options.onPick();
        self.getBoredInstance();
      }

      return false;
    });

    this.includeCss();
  };