config.yml
Webserver:
Port: 8804
Alternative_IP:
Enabled: true
Address: address.com/plan/
Apache config (SSL):
RewriteEngine on
RewriteRule ^(.*/[^./]+)$ $1/ [R=301,L]
<IfModule mod_proxy.c>
ProxyRequests Off
ProxyPass /plan http://localhost:8804
ProxyPassReverse /plan http://localhost:8804
</IfModule>
Logos, etc. will not be displayed correctly, but other data will be displayed.

Plugin versions
5.6 build 2883