s._lockingElements.indexOf(element);

        if (index === -1) {
          return;
        }

        this._lockingElements.splice(index, 1);

        this._lockedElementCache = [];
        this._unlockedElementCache = [];

        if (this._lockingElements.length === 0) {
          this._unlockScrollInteractions();
        }
      },

      _lockingElements: [],

      _lockedElementCache: null,

      _unlockedElementCache: null,

      _originalBodyStyles: {},

      _isScrollingKeypress: function(event