public virtual IPublishedContent GetByRoute(UmbracoContext umbracoContext, bool preview, string route, bool?hideTopLevelNode = null) { if (route == null) { throw new ArgumentNullException("route"); } // try to get from cache if not previewing var contentId = preview ? 0 : _routesCache.GetNodeId(route); // if found id in cache then get corresponding content // and clear cache if not found - for whatever reason IPublishedContent content = null; if (contentId > 0) { content = GetById(umbracoContext, preview, contentId); if (content == null) { _routesCache.ClearNode(contentId); } } // still have nothing? actually determine the id hideTopLevelNode = hideTopLevelNode ?? GlobalSettings.HideTopLevelNodeFromPath; // default = settings content = content ?? DetermineIdByRoute(umbracoContext, preview, route, hideTopLevelNode.Value); // cache if we have a content and not previewing if (content != null && !preview) { var domainRootNodeId = route.StartsWith("/") ? -1 : int.Parse(route.Substring(0, route.IndexOf('/'))); var iscanon = !UnitTesting && !DomainHelper.ExistsDomainInPath(DomainHelper.GetAllDomains(false), content.Path, domainRootNodeId); // and only if this is the canonical url (the one GetUrl would return) if (iscanon) { _routesCache.Store(contentId, route); } } return(content); }