Help.nextcloud.com via ipv6 has not TLS

Hi,

I can’t access https://help.nextcloud.com/ using ipv6:

Firefox: Une erreur est survenue pendant une connexion à help.nextcloud.com. PR_END_OF_FILE_ERROR

$ curl https://help.nextcloud.com/
curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to help.nextcloud.com:443
$ wget https://help.nextcloud.com/
--2021-01-02 23:41:57--  https://help.nextcloud.com/
Résolution de help.nextcloud.com (help.nextcloud.com)… 2a01:4f9:2b:29dc::146, 95.217.53.146
Connexion à help.nextcloud.com (help.nextcloud.com)|2a01:4f9:2b:29dc::146|:443… connecté.
GnuTLS: Error in the pull function.
Incapable d’établir une connexion SSL.

It’s ok with ipv4:

$ curl -4 https://help.nextcloud.com/ >/dev/null
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 18587    0 18587    0     0  41862      0 --:--:-- --:--:-- --:--:-- 41862

External check: https://tls.imirhil.fr/https/help.nextcloud.com

Can you fix it please?

Next time, please use the search function of the forum first, before creating a post on an already reported issue. The problem has already been reported in this forum and also on GitHub: