diff --git a/MyApp/Components/Pages/Docs.razor b/MyApp/Components/Pages/Docs.razor
index 64edc71..858e26a 100644
--- a/MyApp/Components/Pages/Docs.razor
+++ b/MyApp/Components/Pages/Docs.razor
@@ -1,4 +1,4 @@
-@page "/{Slug?}"
+@page "/{Slug:regex(^[a-z-_]+$)}"
 @inherits AppComponentBase
 @inject MarkdownPages Markdown
 @inject AppConfig AppConfig
diff --git a/MyApp/Configure.AppHost.cs b/MyApp/Configure.AppHost.cs
index 4a1cd4e..1a741aa 100644
--- a/MyApp/Configure.AppHost.cs
+++ b/MyApp/Configure.AppHost.cs
@@ -19,9 +19,7 @@ public class AppHost : AppHostBase, IHostingStartup
     public override void Configure(Container container)
     {
         SetConfig(new HostConfig {
+            IgnorePathInfoPrefixes = { "/appsettings", "/_framework" },
         });
-
-        Config.AllowFileExtensions.Add("json");
-        Config.AllowFileExtensions.Add("dat");
     }
 }
diff --git a/MyApp/Program.cs b/MyApp/Program.cs
index 4f3d545..3f3477c 100644
--- a/MyApp/Program.cs
+++ b/MyApp/Program.cs
@@ -82,11 +82,6 @@
     .AddInteractiveWebAssemblyRenderMode()
     .AddAdditionalAssemblies(typeof(Counter).Assembly);
 
-// Add support for serving static *.json files from WebAssembly
-IResult StaticJsonFile(HttpContext context) => Results.File(context.Request.Path.Value![1..], MimeTypes.Json);
-app.MapGet("/appsettings.json", StaticJsonFile);
-app.MapGet("/appsettings.Development.json", StaticJsonFile);
-
 // Add additional endpoints required by the Identity /Account Razor components.
 app.MapAdditionalIdentityEndpoints();