Properly serving pihole locally

[maxdd]

I'm struggling a little bit to properly serve pihole behind a docker in bridge mode on port 82
NPM is configured with a Proxy Host from pihole.local to the local ip (192.168.x.x, port 82)
Basically what i get is the following

As you can see icons and some js scripts are not loaded

For Home-Assistant or Grafana there is a step to change the web root or to trust proxy ip.
Any idea?

Edit:
this bevahior is also partially saw when i forward qb.local to my qbittorrent docker, the site is loaded but certain buttons are not working

[maxdd]

With edge there is no such issue, i guess it is a caching problem?