documentserver behind the proxy, virtualpath config

[sacesare]

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Operating System of DocumentServer

Docker

Version information

7.3

Expected Behavior

It used to work for 7.2 version of server, but since 7.3 I get "double" path resolution. It's related to handling "x-forwarded-host", "x-forwarded-prefix" headers. According to docs, I need to include "prefix" part in "x-forwarded-host" header. But, then getBaseUrl code will be not correct, because of unconditional "x-forwarded-prefix" append. So, we have "double" documentserver-virtual-path. By the way, it seems that that's not single method used for base url resolution, and if I set "x-forwarded-host" to host only and virtual path in "x-forwarded-prefix" part, it dosen't work either- I get url without virtual path prefix at document loading stage. So, I need to force "x-forwarded-prefix" header to be empty, leaving "x-forwarded-host" header with virtual path "prefix" part. Why? Don't know exactly, traefik's stripprefix middleware add removed virtual path to "x-forwarded-prefix" header automatically and it seems onlyoffice must work as expected with plain "x-forwarded-host" header (without virtual path part), but it dosen't. x-forwarded-prefix="/prefix" with x-forwarded-host="host" not working too, so only working solution is x-forwarded-host="host/prefix" and "x-forwarded-prefix"="".

Actual Behavior

Double virtual path resolution.

Reproduction Steps

No response

Additional information

No response