Issue #3452561 by bwaindwain, dydave: Reverted changes from 'Hide the...

        }

      });

      // Always hide the dropdown menu on mobile.

      if (window.matchMedia("(max-width: 767px)").matches && $('body').hasClass('toolbar-tray-open')) {

        $('body').removeClass('toolbar-tray-open');

        $('#toolbar-item-administration').removeClass('is-active');

        $('#toolbar-item-administration-tray').removeClass('is-active');

      };

    }

  };

})(jQuery, Drupal);