Routing Issue: Blank Page When Routing Ruby on Rails Admin Section to "/admin" Route

[francislavoie]

If your upstream app doesn’t know about /admin then it makes sense that it wouldn’t work.

The "subfolder problem", OR, "why can't I reverse proxy my app into a subfolder?"

Have you ever tried to reverse proxy an app into its own little subfolder of your domain name? Makes things neat, doesn’t it? Using example.com/foo/ for one app, example.com/bar/ for another. If you’re coming here from one of the selfhosted communities, you might be thinking along the lines of example.com/sonarr/, example.com/radarr/ etc. Chances are, you’ve tried some configuration along these lines: example.com { redir /sonarr /sonarr/ handle_path /sonarr/* { reverse_proxy localhost…

You’d probably be better off making a subdomain like admin.example.com and serve it from there, if you need to continue serving a static site at your apex domain.