title: django admin panel deploy on server Forbidden (403) CSRF verification failed. Request aborted
body: <p>I'm on course Test-Driven Development with Django, Django REST Framework, and Docker (Michael Herman). My problem is that in a locally running container, the admin panel opens without problems, but the container placed on heroku gives an error (Forbidden (403)
  CSRF verification failed. Request aborted.) .. Where to look? Thanks!</p>