SESSION_COOKIE_SECURE=True in Django 2.2 redirects Admin login to itself

Actually, the following works.

SECURE_SSL_REDIRECT = True
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True

It is just that testing in on my development environment, HTTPS is not available.

It seems the SESSION_COOKIE_SECURE option works correctly only under the HTTPS connection.

But, I have no idea why does it work under HTTP in my local environment with default Django's manage.py runserver but not Nginx / gunicorn in production...