How to setup onlyoffice document server for owncloud?

Question

ownCloud/Nextcloud

Hello. There is an ownloud combat server and a virtual machine on which docker is configured with onlyoffice. Installed a plugin on the server, added onlyoffice docker address. If I go to the server by ip ( 1.2.3.4/cloud) I can edit documents. If I go by the name of the site ( https://cloud.example.ru/cloud) I can’t edit files, it says onlyoffice is not available.
External access to owncloud is configured by name via nginx Docker
address http://1.2.3.6:80, port forwarded to http://sd.example.ru:1212. Both ports are available, but I can't edit files through https://cloud.example.ru/cloud .
file /etc/onlyoffice/documentserver/default.json
"ipfilter": {
"rules": [{"address": "*", "allowed": true}],
"useforrequest": false,
"errorcode": 401
How to edit documents from outside in owncloud?
ps for docker did not configure https

Answer 1

the solution is simple, set up https for onlyoffice

Answer 2

strip the headers