code: function () {
              var cfg = this._cfg;
              return ariaCoreBrowser.isIE11 && cfg.waiAria && cfg.disabled && this._isChecked() && cfg._inputType === "checkbox";
          }
docs: Returns true if it is needed to use the work-around for a bug in IE 11 with screen readers.
  @param {Boolean} true if the work-around is needed