js/foundation-5.4.7.min.js
function () {
      var sheet = Foundation.stylesheet;

      if (typeof this.rule_idx !== 'undefined') {
        sheet.deleteRule(this.rule_idx);
        sheet.deleteRule(this.rule_idx);
        delete this.rule_idx;
      }
    }
function () {
      var sheet = Foundation.stylesheet;

      if (typeof this.rule_idx !== 'undefined') {
        sheet.deleteRule(this.rule_idx);
        sheet.deleteRule(this.rule_idx);
        delete this.rule_idx;
      }
    }
function ( ) { var sheet = Foundation . stylesheet ; if ( typeof this . rule_idx !== 'undefined' ) { sheet . deleteRule ( this . rule_idx ) ; sheet . deleteRule ( this . rule_idx ) ; delete this . rule_idx ; } }
Remove old dropdown rule index
Remove old dropdown rule index