Nginx, SSL, Django, CSRF verification failed (custom port) - django

Question

I am working on a project using Django, nginx and Gunicorn. Everything is good except for POST requests. Django raise a CSRF error.
I dont know what is missing or wrong in my django and/or nginx conf.
Edit: I found out what was wrong. Because of my exotic SSL port.
I replaced this line in the 'location /' block:
proxy_set_header Host $host;
by:
proxy_set_header Host localhost:8443;
Django error:
Forbidden (403):
CSRF verification failed. Request aborted.
Reason given for failure:
Referer checking failed - https://localhost:8443/accounts/login/ does not match https://localhost/
Here is my nginx conf:
server {
listen 8880;
server_name localhost:8443;
rewrite ^ https://$server_name$request_uri? permanent;
}
#Gunicorn
upstream project {
server localhost:8888;
}
# HTTPS server
server {
listen 8443 ssl default_server;
ssl on;
server_name localhost;
ssl_certificate /path/file.crt;
ssl_certificate_key /path/file.key;
#Disable SSLv3
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 10m;
ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:ECDHE-RSA-AES128-GCM-SHA256:AES256+EECDH:DHE-RSA-AES128-GCM-SHA256:AES256+EDH:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";
ssl_prefer_server_ciphers on;
add_header Strict-Transport-Security "max-age=63072000; includeSubdomains; preload";
location / {
proxy_pass http://localhost:8888;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Ssl https;
proxy_set_header X-Forwarded-Proto https;
proxy_set_header X-Forwarded-Port 8443;
proxy_set_header Host $host; #Replaced by proxy_set_header Host localhost:8443;
}
}
and in my settings.py:
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTOCOL', 'https')
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True

Answer 1

Try add in your location / this: proxy_pass_header X-CSRFToken;