Hi

Why doesn't proxy_redirect interpolate variables in its first argument?

I'm trying to setup a reverse proxy to a backend that uses name-based virtual hosts, so I need to change both the incoming Host header and the outgoing Location headers:

server {
server_name public.hostname.com;

set $proxy_to private.hostname.com

location / {
proxy_pass http://backend;
proxy_redirect http://$proxy_to/ http://$host/;
proxy_set_header Host $proxy_to;
}
}

This doesn't work, unless I expand $proxy_to in proxy_redirect by hand.

Am I supposed to write it in another way?

I'm using 0.8.32 on Linux amd64.

Tobia
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