Can't connect nextcloud or Android app, healthcheck URL returns a 400 error

[roukydesbois]

Describe the bug

Installation went fine, but OO is unusable via Nextcloud or the Android app - probably because the address https:///healthcheck returns a 400 error

Context

• Hardware: VPS on Linode
• YunoHost version:

  root@ynh:~# yunohost -v
  yunohost:
  repo: stable
  version: 4.2.6.1
  yunohost-admin:
  repo: stable
  version: 4.2.3.3
  moulinette:
  repo: stable
  version: 4.2.3.3
  ssowat:
  repo: stable
  version: 4.2.3

• I have access to my server: SSH and webadmin
• Are you in a special context or did you perform some particular tweaking on your YunoHost instance?: no
• Using, or trying to install package version/branch: 6.1.0~ynh2

Steps to reproduce

• Install OO.
• Install OO Nextcloud app.
• Put the OO URL in the config of the nextcloud app
• A 400 error is returned saying that the address https:///healthcheck is not found

Expected behavior

Well, for the nextcloud app to succeed in connecting to OO ;)

Logs

I found this in the documentserver/nginx.error.log:

2021/08/07 22:52:00 [error] 30035#30035: *1040 connect() failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: , request: "GET /healthcheck/ HTTP/1.1", upstream: "http://[::1]:8000/healthcheck/", host: "[my obfuscated documentserverURL]"

When I look at the nginx configuration for the documentserver, it's not running on port 8000 but on 8096, might this be the issue?

[antibyte]

Same problem here. When adding :8096 to the URL the error changes to: ssl3_get_record:wrong version number

[roukydesbois]

I've just tried with the new version and everything works!