code: function() {
        var mimeTypeList = "";
  
        for (var i = 0; i < navigator.mimeTypes.length; i++) {
          if (i == navigator.mimeTypes.length - 1) {
            mimeTypeList += navigator.mimeTypes[i].description;
          } else {
            mimeTypeList += navigator.mimeTypes[i].description + ", ";
          }
        }
        return mimeTypeList;
      }
docs: Get Mime Types.  Return a string containing a list of installed mime types.