code: function disableParentScroll(disabled) {
        if (disabled && !lastParentOverFlow) {
          lastParentOverFlow = disableScrollTarget.css('overflow');
          disableScrollTarget.css('overflow', 'hidden');
        } else if (angular.isDefined(lastParentOverFlow)) {
          disableScrollTarget.css('overflow', lastParentOverFlow);
          lastParentOverFlow = undefined;
        }
      }
docs: Prevent parent scrolling (when the SideNav is open)