I am running OH 3.2.0.M3 inside a docker container.
I am fighting already an hour in displaying Grafana graphs inside MainUI, showing connection problems.
So I stepped back to a simple Web Frame Card, which I configured to connect to www.google.com.
The results are somewhat weird, when I set the value for the source URL to:
www.google.com → I get openhab displayed inside the window (own instance)
http://www.google.com or https://www.google.com → I get connection rejection
I was looking for the karaf log:set command to enable DEBUG for the MainUI but was not successful
Any guess what this can be?
The container runs with network: host.
I have also connected to the docker container:
docker exec -it openhab bash
and run curl with all combinations including grafana link. These are working as expected.