Trouble with CORS Policy and .NET Core 3.1

Question

I\'m not sure what I\'m missing, but can\'t seem to get my CORS Policy working with .NET Core 3.1 and Angular 8 client-side.

Startup.cs:

Answer 1

In my situation it was related to the Content-Type of the header being application/json.

Only those Content-Type headers are allowed with CORS:

application/x-www-form-urlencoded

multipart/form-data

text/plain