Issue Setting Up WS-FED

PowerShell Universal
1 
Product: PowerShell Universal
Version: 3.4.0

I have PowerShell Universal hosted on IIS 10, and am attempting to setup WS-FED for the authentication.

My appsettings are as follows:

{
  "Kestrel": {
    "Endpoints": {
      "HTTP": {
        "Url": "http://*:5000"
      }
    },
    "RedirectToHttps": "false",
    "UseHttpSys": "false",
    "BasePath": ""
  },
  "ApplicationInsights": {
    "InstrumentationKey": ""
  },
  "Logging": {
    "Path": "%PROGRAMDATA%/PowerShellUniversal/log.txt",
    "RetainedFileCountLimit": 31,
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information",
      "Grpc": "Information"
    }
  },
  "AllowedHosts": "*",
  "CorsHosts": "https://login.microsoftonline.com",
  "Plugins": [
    "UniversalAutomation.LiteDBv5"
  ],
  "Data": {
    "RepositoryPath": "%ProgramData%\\UniversalAutomation\\Repository",
    "ConnectionString": "filename=%ProgramData%\\UniversalAutomation\\database.db;upgrade=true",
    "GitRemote": "",
    "GitUserName": "",
    "GitPassword": "",
    "GitBranch": "",
    "GitSyncBehavior": "TwoWay",
    "GitInitializeBehavior": "",
    "GitSyncInterval": "1",
    "ConfigurationScript": ""
  },
  "Api": {
    "Url": "https://automation.contoso.com",
    "GrpcPort": 0
  },
  "Authentication": {
    "Windows": {
      "Enabled": "false"
    },
    "WSFed": {
      "Enabled": "true",
      "MetadataAddress": "https://login.microsoftonline.com/XXXXX-XXXX-XXXXX-XXXXX-XXXXXXXXX/federationmetadata/2007-06/federationmetadata.xml",
      "Wtrealm": "api://XXXXX-XXXX-XXXXX-XXXXX-XXXXXXXXX",
      "CallbackPath": "/auth/signin-wsfed",
      "Wreply": "",
      "UseTokenLifetime": true,
      "CorrelationCookieSameSite": ""
    },
    "OIDC": {
      "Enabled": "false",
      "CallbackPath": "/auth/signin-oidc",
      "ClientID": "",
      "ClientSecret": "",
      "Resource": "",
      "Authority": "",
      "ResponseType": "code",
      "SaveTokens": "false",
      "CorrelationCookieSameSite": "",
      "UseTokenLifetime": true,
      "Scope": "openid profile groups",
      "GetUserInfo": false
    },
    "ClientCertificate": {
      "Enabled": "false"
    },
    "SessionTimeout": "25"
  },
  "Jwt": {
    "SigningKey": "PleaseUseYourOwnSigningKeyHere",
    "Issuer": "IronmanSoftware",
    "Audience": "PowerShellUniversal"
  },
  "UniversalAutomation": {
    "JobHandshakeTimeout": 5,
    "JobDebugging": false,
    "ContinueJobOnServerStop": false
  },
  "UniversalDashboard": {
    "AssetsFolder": "%ProgramData%\\PowerShellUniversal\\Dashboard",
    "DashboardStartupTimeout": 10
  },
  "Secrets": {
    "SecretStore": {
      "Password": "PSUSecretStore"
    }
  },
  "ShowDevTools": false,
  "HideAdminConsole": false,
  "Profiling": false
}

However, when I am trying to access the site, it keeps redirecting over and over, and I am getting the following in my PSU Logs:

2022-10-12 08:33:10.301 -05:00 [ERR] Connection ID "17870283331606676357", Request ID "80000396-0002-f800-b63f-84710c7967bb": An unhandled exception was thrown by the application.
System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.AspNetCore.Authentication.WsFederation.WsFederationHandler.HandleChallengeAsync(AuthenticationProperties properties)
   at Microsoft.AspNetCore.Authentication.AuthenticationHandler`1.ChallengeAsync(AuthenticationProperties properties)
   at Microsoft.AspNetCore.Authentication.AuthenticationService.ChallengeAsync(HttpContext context, String scheme, AuthenticationProperties properties)
   at Microsoft.AspNetCore.Authorization.Policy.AuthorizationMiddlewareResultHandler.HandleAsync(RequestDelegate next, HttpContext context, AuthorizationPolicy policy, PolicyAuthorizationResult authorizeResult)
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
   at PowerShellUniversal.DisallowedModeMiddleware.InvokeAsync(HttpContext context, RequestDelegate next) in C:\actions-runner\_work\universal\universal\src\Universal.Server\Middleware\ModeMiddleware.cs:line 47
   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()
--- End of stack trace from previous location ---
   at Universal.Server.Middleware.RoutingMiddleware.Invoke(HttpContext httpContext, IPolicyEvaluator policyEvaluator) in C:\actions-runner\_work\universal\universal\src\Universal.Server\Middleware\RoutingMiddleware.cs:line 155
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
   at Universal.Server.Middleware.SwaggerAuthenticationMiddleware.InvokeAsync(HttpContext context, RequestDelegate next) in C:\actions-runner\_work\universal\universal\src\Universal.Server\Middleware\SwaggerAuthMiddleware.cs:line 42
   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()
--- End of stack trace from previous location ---
   at AspNetCoreRateLimit.RateLimitMiddleware`1.Invoke(HttpContext context) in C:\actions-runner\_work\universal\universal\src\AspNetCoreRateLimit\Middleware\RateLimitMiddleware.cs:line 109
   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.StatusCodePagesMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.ResponseCompression.ResponseCompressionMiddleware.InvokeCore(HttpContext context)
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Server.IIS.Core.IISHttpContextOfT`1.ProcessRequestAsync()

When searching the forums I had seen another issue regarding WS-FED but was from a much earlier version, should WS-FED work in this later version?