csrf_exempt not working

Hi, I am building oauth using django-oauth-toolkit.
I did everything as described here: Getting started — Django OAuth Toolkit 3.0.1 documentation, but is still get csrf “Forbidden (CSRF cookie not set.): /o/token” error.

When I check TokenView, which is assigned to endpoint /o/token, csrf_exempt decorator is applied.

Why is this happening ?
Error message:

Post your urls.py and your settings.py.
Also, try not to paste images. Post your code using the proper format.

I already solved it in another way. Thanks anyway.

Good to know! If you want share your solution in order to help others too.