docker ps
shows
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
906333103ebd homeassistant/home-assistant:stable “/init” 10 minutes ago Up 10 minutes home-assistant
Ah, this may be the hint I need (although I do not know how to fix it:-
2021-07-18 02:47:10 WARNING (MainThread) [homeassistant.components.http.forwarded] A request from a reverse proxy was received from ::1, but your HTTP integration is not set-up for reverse proxies; This request will be blocked in Home Assistant 2021.7 unless you configure your HTTP integration to allow this header