AIO behind caddy still rewrite to 443 port instead of the port I use

[lianqi1998]

Steps to reproduce

1. My ISP block 80, 443 port
2. Add caddy reverse proxy config with ACME DNS-challenge and open 20000 to replace 443. Caddy can get cert and run well.
3. Use AIO behind caddy with --env SKIP_DOMAIN_VALIDATION=true
4. Open https://my.domain:20000 Nextcloud will rewrite to https://my.domain/login
5. I can enter Nextcloud panel after I add port manually. And after login the matter disappeared.
6. After I modified "domain": "my.domain:20000" in configuration.json as folder nextcloud_aio_mastercontainer/_data/data/ It seems fixed (I'm not sure, I changed a lot)

Expected behavior

After acess Nextcloud with specific port I think AIO should not rewrite adress to 443

Actual behavior

With right reverse proxy config, Nextcloud still rewrite adress as default (443).
After login the matter disappeared, so I guess it's a bug

Host OS

debian 11

Nextcloud AIO version

AIO v7.2.1

Current channel

latest channel

Other valuable info

By the way, I wonder to know if I modified "domain": "my.domain:20000" in configuration.json with port information directly, it will produce other problem?
Thank You for Your Patience.

[Zoey2936]

https://github.com/nextcloud/all-in-one#are-other-ports-than-the-default-443-for-nextcloud-supported - also the :2000 could cause problems

[lianqi1998]

If port 443 and/or 80 is blocked for you, you may use the ACME DNS-challenge or a Cloudflare Tunnel

I think perhaps AIO support other port, by get cert by ACME DNS-challenge?

https://github.com/nextcloud/all-in-one#are-other-ports-than-the-default-443-for-nextcloud-supported - also the :2000 could cause problems↳

So that means AIO can only run on 443 ?
If AIO only support 443, maybe emphasize the consideration that even if use the ACME DNS-challenge or a Cloudflare Tunnel, AIO still don't work on the environment as port 443 and/or 80 is blocked is better

But what confuses me is AIO will work after login. It seems like it is a bug happens on login.
And could I know why abandon other port support, it looks as if once solve the problem while login, AIO will run other port behind reverse proxy.