This is a timely thread - I am experiencing exactly the same issue, although my set up is a little different essentially I am attempting to achieve the same (use a /collabora suffix):
- nginx reverse proxy with /collabora with proxy pass to:
- nginx ingress on k8s, configured with /collabora but rewriting with /$2, so the request is forwarded with no suffix to the collabora container
- collabora container (with no suffix configured in the start up params) receives the request with:
wsd-00001-00032 2024-10-13 07:45:59.007001 +0000 [ websrv_poll ] ERR #36: #36 Exception while processing incoming request: [GET /cool/https:/domain.com/nextcloud/index.php/apps/richdocuments/wopi/files/166183_oc12zdgi5841%3Faccess_token=vVNkokdLiIoOtWrbc9xONiwOv3LuKeap&access_token_ttl=0&permission=edit/ws?WOPISrc=https%3A%2F%2Fdomain.com%2Fnextcloud%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F166183_...]: Bad URI syntax| wsd/ClientRequestDispatcher.cpp:919
I have tried various rewrites, forwarding /browser /cool, /hosting and I believe I am experiencing the same as OP, so I’m following with interest