(this._isFooterFixed() && $(SELECTOR_FOOTER).css('position') === 'fixed') {\n      sidebarHeight = heights.window - heights.header - heights.footer\n    }\n\n    $controlSidebar.css('height', sidebarHeight)\n\n    if (typeof $.fn.overlayScrollbars !== 'undefined') {\n      $controlSidebar.overlayScrollbars({\n        className: this._config.scrollbarTheme,\n        sizeAutoCapable: true,\n        scrollbars: {\n          autoHide: this._config.scrollbarAutoHide,\n          clickScrolling: true\n        }\n      })\n...