Fix.

Author: ilonatommy

src/Components/test/testassets/Components.TestServer/RazorComponentEndpointsNoInteractivityStartup.cs

@@ -64,7 +64,7 @@ public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
                     app.UseExceptionHandler("/Error", createScopeForErrors: true);
                 }
 
-                reexecutionApp.UseStatusCodePagesWithReExecute("/not-found-reexecute", createScopeForErrors: true);
+                reexecutionApp.UseStatusCodePagesWithReExecute("/not-found-reexecute", createScopeForStatusCodePages: true);
                 reexecutionApp.UseStaticFiles();
                 reexecutionApp.UseRouting();
                 RazorComponentEndpointsStartup<TRootComponent>.UseFakeAuthState(reexecutionApp);

src/Components/test/testassets/Components.TestServer/RazorComponentEndpointsStartup.cs

@@ -103,7 +103,7 @@ public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
                         await context.Response.WriteAsync("Triggered a 404 status code.");
                     });
                 });
-                reexecutionApp.UseStatusCodePagesWithReExecute("/not-found-reexecute", createScopeForErrors: true);
+                reexecutionApp.UseStatusCodePagesWithReExecute("/not-found-reexecute", createScopeForStatusCodePages: true);
                 reexecutionApp.UseRouting();
 
                 reexecutionApp.UseAntiforgery();

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Program.cs

@@ -94,7 +94,7 @@
 if (!app.Environment.IsDevelopment())
 #endif
 {
-    app.UseExceptionHandler("/Error", createScopeForStatusCodePages: true);
+    app.UseExceptionHandler("/Error", createScopeForErrors: true);
 #if (HasHttpsProfile)
     // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
     app.UseHsts();