Fix

Source/ProofOfConcept/Program.cs

@@ -6,6 +6,7 @@ using Microsoft.AspNetCore.HttpOverrides;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Diagnostics.HealthChecks;
+using Microsoft.IdentityModel.Protocols;
 using Microsoft.IdentityModel.Protocols.OpenIdConnect;
 using ProofOfConcept.Models;
 using ProofOfConcept.Services;
@@ -86,6 +87,8 @@ builder.Services
         o.Configuration.ClaimsSupported.Add("sub");
         o.Configuration.ClaimsSupported.Add("aud");
         
+        o.ConfigurationManager = 
+
         // Standard OIDC web app settings
         o.ResponseType = OpenIdConnectResponseType.Code;
         o.UsePkce = true;