I just upgraded from 0.57.2 to 0.69.1 but when i try to access HA i just get Unable to connect, and if i look in the development tools it seems the web client opens a few websockets then just gives up without sending any frames.
The revese proxy is IIS, and HA runs on linux on a PI3 under Docker.
Each time a websocket is created the following is logged 2018-05-17 18:20:19 INFO (MainThread) [homeassistant.components.http.view] Serving /api/websocket to 192.168.0.158 (auth: False).
What could be wrong?