🐛 http2Origin option and --http2-origin

**Describe the bug**
@nikr-canva I added the flag [mentioned here](https://github.com/cloudflare/cloudflared/pull/656) to my docker container (version 2022.6.3).
In the log `Settings: map[http2-origin:true loglevel:debug no-autoupdate:true token:*****]` which means the flag is applied.
I also see `GET https://zitadel.mydomain.com/ui/console/assets/environment.json HTTP/1.1` which is weird considering I was expecting HTTP/2. I'm assuming that I set something up incorrectly but I'm not even sure where to begin.

I have checked https://mydomain.com/cdn-cgi/trace and it shows `http=http/2`

**To Reproduce**
Not sure, unfortunately. All I did was launch the docker container, add a public hostname in the UI.

**Expected behavior**
Should be HTTP/2

**Environment and versions**
- OS: alpine linux host, container is "cloudflare/cloudflared:latest" as of today.
- Architecture: AMD64
- Version: 2022.6.3

**Logs and errors**
logs attached
[cloudflared.log](https://github.com/cloudflare/cloudflared/files/9023888/cloudflared.log)