Websockets configuration in 4.2

[alex]

Your configuration looks wrong to me.

From the docs:

{
 "sockets": {
  "ws": "0.0.0.0:8080",
  "api": "0.0.0.0:8081",
  "zmq": ["tcp://*:9505"]
 },
 "debug": true
}

You seem to have other settings in there.