Hi
I am using the transparent webproxy with Sophos UTM 9.3.
When i try to access an Loxone(1) webinterface (Port 80) i can open the page and type in the credentials, but login is not possible.
Chrome debug says:
WebSocket connection to 'ws://xxx.xxx.xxx.xxx/ws/' failed: Error during WebSocket handshake: Unexpected response code: 400
There are no errors or blocked pages in the proxy log. It just don't work.
Disabling the web proxy is the only cure. So i think it's an bug in the UTM web proxy. I can't contact the support, because i am an home user.
If an Sophos employee or forum mod want to test this for debugging, send me an PM/email so i can send you the website with the credentials.
(1) Loxone is an self hosted home automation server.
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