I have a reverse proxy setup using apache mod_proxy:
<VirtualHost *:443> ServerName reverse.server.com ProxyPass / http://10.1.9.11:3000/ ProxyPassReverse / http://10.1.9.11:3000/ ProxyPreserveHost on ...snip ssl stuff... </VirtualHost>
This works fine most of the time. The problem is when the internal server does a redirect. While the proxypassreverse should catch the location, and it seems to, it redirects to http://reverse.server.com rather than to https://reverse.server.com. So it is half working, the address changes correctly, but the protocol stays as the internal server.
I am not clear on why it is doing this, as the proxied connection is SSL - any ideas?