The authentication backend
mozilla_django_oidc.contrib.drf.OIDCAuthentication
is present in the default authentication classes for the REST_FRAMEWORK
settings. This backend should not be used by our application and can
lead to the usage of our main api with an access_token instead of the
cookie session.
We need to override the drf SessionAuthentication backend to implement
the authenticate_header method. Without this, a 403 status code is
returned, but it is not valid. It must a be 401