Need help creating a tunnel w/ specific port

Hello,

I'm diving into Cloudflare tunnels, and trying to get my Home Assistant instance to tunnel correctly, but having problems.

I use a non-standard port for the Home Assistant (HA) server, `9120`, and all my things are already connecting to that port, so I'd rather not have to change it.

I've successfully managed to create a tunnel using the following config:

```
tunnel: HA
credentials-file: /home/js/.cloudflared/[the-numbers].json

ingress:
- hostname: subdomain.domain.com
service: https://subdomain.domain.com:9120
- service: http_status:404
```

This _partially works_. I can connect to https://subdomain.domain.com:443 (and http on 80), plus various other ports as outlined in [this doc](https://support.cloudflare.com/hc/en-us/articles/200169156-Identifying-network-ports-compatible-with-Cloudflare-s-proxy). But I cannot connect to https://subdomain.domain.com:9120, which is the ultimate goal here.

Is this possible? How? :) Thanks!