https://github.com/umbraco/Umbraco-CMS/issues/11227

Set culture from domain when internal redirecting due to public access

src/Umbraco.Core/Routing/PublishedRouter.cs

@@ -252,6 +252,11 @@ namespace Umbraco.Cms.Core.Routing
                 builder.SetPublishedContent(content);
             }
 
+            if (!builder.HasDomain())
+            {
+                FindDomain(builder);
+            }
+
             return BuildRequest(builder);
         }