I want to develop an application using the Blizzard API.
I wrote some code for the backend to use oauth2 blizzard authentication. After that I started the frontend. But when I tried to call the backend I got a cors error.
I wrote a stack overflow post with more informations.
I don’t know why and how solve my problems
Thank you for your help
The stack :
- Spring boot for the backend
- React for the frontend