I am trying to secure my ASP.NET Core Web API and access it with my React client app. I followed the solution posted by Tiny Wang, that helped me to understand the context.
Now I am still unable to call the API, I always get a 401 authentication error. My log from the API shows the following exception:
I believe that there is something wrong in my Azure AD configuration, but I did it as described by Microsoft. Does anyone know where I could look further to fix this?
Thanks and regards,
Roland