attempting to redirect to port 4000 when behind reverse proxy

[cxnky]

i'm trying to set this up behind a reverse proxy with SSL, i've successfully set up the proxy and using proxy_pass http://localhost:4000.

the request gets successfully sent to accent, but then accent tries redirecting me to port 4000. i cant see a config anywhere, and i've not specified the port in either STATIC_URL or CANONICAL_URL

[simonprev]

What is your environment variables for STATIC_URL CANONICAL_URL and PORT?