Try to redirect on MSAL logout.

Shogi.Api/Program.cs

@@ -95,7 +95,10 @@ namespace Shogi.Api
                 {
                     await socketService.HandleSocketRequest(context);
                 }
-                await next();
+                else
+                {
+                    await next();
+                }
             });
         }
 

Shogi.UI/Pages/Authentication.razor

@@ -2,7 +2,7 @@
 @using Microsoft.AspNetCore.Components.WebAssembly.Authentication
 
 <RemoteAuthenticatorView Action="@Action" />
-@code{
+@code {
     [Parameter] public string? Action { get; set; }
     // https://github.com/dotnet/aspnetcore/blob/main/src/Components/WebAssembly/WebAssembly.Authentication/src/Models/RemoteAuthenticationActions.cs
     // https://github.com/dotnet/aspnetcore/blob/7c810658463f35c39c54d5fb8a8dbbfd463bf747/src/Components/WebAssembly/WebAssembly.Authentication/src/RemoteAuthenticatorViewCore.cs

Shogi.UI/Pages/Home/Account/AccountManager.cs

@@ -123,7 +123,7 @@ public class AccountManager
         else if (platform == WhichAccountPlatform.Microsoft)
         {
             await accountState.SetUser(null);
-            navigation.NavigateToLogout("authentication/logout");
+            navigation.NavigateToLogout("authentication/logout", "https://lucaserver.space/shogi");
         }
     }
 }

Shogi.UI/Program.cs

@@ -39,12 +39,8 @@ static void ConfigureDependencies(IServiceCollection services, IConfiguration co
     services.AddMsalAuthentication(options =>
     {
         configuration.Bind("AzureAd", options.ProviderOptions.Authentication);
-        //options.ProviderOptions.DefaultAccessTokenScopes.Add("https://graph.microsoft.com/User.Read");
-        //options.ProviderOptions.DefaultAccessTokenScopes.Add("openid");
-        //options.ProviderOptions.DefaultAccessTokenScopes.Add("offline_access");
-        //options.ProviderOptions.DefaultAccessTokenScopes.Add("profile");
-        //options.ProviderOptions.LoginMode = "redirect";
-        
+        options.ProviderOptions.LoginMode = "redirect";
+
     });
     services.AddOidcAuthentication(options =>
     {