UnRaid Install removed CONTEXT_PATH

[Mystic]

I've installed BookSonic on UnRaid version: 6.9.2
Installed using Docker removed the CONTEXT_PATH and set up a reverse proxy for HTTPS and SSL. This is my issue.
- When I access the URL using WEBUI from docker the URL is HTTP://IP:Port. Everything works as expected. I can click on settings.
- When I access the URL using internet: URL https://subdomain.domain.com:port. I can access the site using admin, but the settings page doesn't work. I click on it and nothing happens.