cloudflared works but not loading HA

[umbral hill]

I run HA core and setup a container for cloudflared and within cloudflare I see my tunnel as healthy. However it does not actually load HA. I edited my HA configuration.yml file and it looks like this

http:
use_x_forwarded_for: true
trusted_proxies:
- 172.16.0.0/12

however still same issue. Not sure what configuration is missing at this point.

for what its worth the first time I launch the page in a browser externally I get the page is not secure but once i click that it never loads