Collabora will not load documents in nextcloud. Websocket error

User Support
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Im running next cloud and collabora in two different docker containers. I have both containers reverse proxies to a subdomain.

I am using openlitespeed as a webserver. I am able to connect to the collabora s* ALPN, offering h2

I have attatched my log from curl -v. Everything seems to be working on my end.

  • ALPN, offering http/1.1

  • successfully set certificate verify locations:
  • CAfile: / etc / ssl / certs / ca-certificates.crt
    CApath: / etc / ssl/certs
  • TLSv1.3 (OUT), TLS handshake, Client hello (1):
  • TLSv1.3 (IN), TLS handshake, Server hello (2):
  • TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
  • TLSv1.3 (IN), TLS handshake, Certificate (11):
  • TLSv1.3 (IN), TLS handshake, CERT verify (15):
  • TLSv1.3 (IN), TLS handshake, Finished (20):
  • TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):
  • TLSv1.3 (OUT), TLS handshake, Finished (20):
  • SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384
  • ALPN, server accepted to use h2
  • Server certificate:
  • subject: CN= collab. q ubito logyh ldg.c om
  • start date: Feb 28 11:28:22 2022 GMT
  • expire date: May 29 11:28:21 2022 GMT
  • subjectAltName: host “collab.qubitologyhldg. com” matched cert’s “collab.qubitologyhldg.com”
  • issuer: C=US; O=Let’s Encrypt; CN=R3
  • SSL certificate verify ok.
  • Using HTTP2, server supports multi-use
  • Connection state changed (HTTP/2 confirmed)
  • Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
  • Using Stream ID: 1 (easy handle 0x559b0253fe30)

GET / HTTP/2
Host: collab.qubitologyhldg.com
user-agent: curl/7.68.0
accept: /

  • TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
  • TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
  • old SSL session ID is stale, removing
  • Connection state changed (MAX_CONCURRENT_STREAMS == 100)!
    < HTTP/2 200
    < content-type: 10
    < last-modified: Mon, 28 Feb 2022 13:47:52
    < content-length: 2
    < date: Mon, 28 Feb 2022 13:47:52 GMT
    < server: LiteSpeed
    < alt-svc: h3=“:443”; ma=2592000, h3-29=“:443”; ma=2592000, h3-Q050=“:443”; ma=2592000, h3-Q046=“:443”; ma=2592000, h3-Q043=“:443”; ma=2592000, quic=“:443”; ma=2592000; v=“43,46”
    erver through nextcloud.
2

You haven’t listed the reverse proxy configuration, probably something is wrong there.