Is your feature request related to a problem? Please describe.
I am not able to customise the NetBird Reverse Proxy error pages (502, etc) to A) suit the branding of the web service, or B) obfuscate the stack being used (NetBird) for security reasons.
Describe the solution you’d like
I use NetBird for its VPN functionality, but I also find the reverse proxy feature extremely useful. And I use it currently to host a couple of web services (Yes. I know it’s in beta, but so far I found it to be fairly stable.)
I have noticed that when an error occurs with the origin server (e.g., the reverse proxy can’t reach the origin server, or the origin server returns some kind of an error code). The client gets presented with a NetBird error page. This is quite nicely styled. However, it seems to be more targeted towards the NetBird administrator, with a link to documentation, rather than a random user who has hit an issue.
Furthermore, in some cases, it’s a bit of an information leak because it reveals that you’re using NetBird in the stack. Therefore, I would really appreciate if there was a functionality to be able to override the default NetBird error page, ideally, on a per service basis in the reverse proxy.
So for some services, you could leave the default page enabled, whereas for others, you can set a custom page. For example, what I would probably do for some of my services is just set a very basic error page, almost like the Apache or NGINX defaults. But you could also do something like add on-brand error pages for your specific service if you wanted.
Is this something on the roadmap? Is it possible?