This was fairly straightforward and I got it redirecting to my Blazor page endpoint /auth0, but now I am getting an odd OpenIdConnectAuthenticationHandler exception. It reads:
An unhandled exception occurred while processing the request.
Exception: OpenIdConnectAuthenticationHandler: message.State is null or empty.
Unknown location
Exception: An error was encountered while handling the remote login.
Microsoft.AspNetCore.Authentication.RemoteAuthenticationHandler<TOptions>.HandleRequestAsync()
Stack Query Cookies Headers Routing
Exception: OpenIdConnectAuthenticationHandler: message.State is null or empty.
Show raw exception details
System.Exception: OpenIdConnectAuthenticationHandler: message.State is null or empty.
Exception: An error was encountered while handling the remote login.
Microsoft.AspNetCore.Authentication.RemoteAuthenticationHandler<TOptions>.HandleRequestAsync()
Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
Show raw exception details
System.Exception: An error was encountered while handling the remote login.
---> System.Exception: OpenIdConnectAuthenticationHandler: message.State is null or empty.
--- End of inner exception stack trace ---
at Microsoft.AspNetCore.Authentication.RemoteAuthenticationHandler`1.HandleRequestAsync()
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
I’ve tried both a Blazor component/page and a .CSHTML page (with model) and both give the same error. Is there something extra that needs to be added to the Startup.cs class to make this work?
I’ve even tried adding the following to my Startup.cs class with no effect:
builder.Services.AddHttpContextAccessor();
The code for my callback doesn’t even reach the breakpoint shown:
Thoughts?