if (this._config.allowDuplicates) {\n      tabId += `-${Math.floor(Math.random() * 1000)}`\n      navId += `-${Math.floor(Math.random() * 1000)}`\n    }\n\n    const newNavItem = `<li class=\"nav-item\" role=\"presentation\"><a href=\"#\" class=\"btn-iframe-close\" data-widget=\"iframe-close\" data-type=\"only-this\"><i class=\"fas fa-times\"></i></a><a class=\"nav-link\" data-toggle=\"row\" id=\"${navId}\" href=\"#${tabId}\" role=\"tab\" aria-controls=\"${tabId}\" aria-selected=\"false\">${title}</a></li>`\n...