Signalr and Websockets on KrakenD API Gateway – Nginx

I have had trouble implementing SignalR Microservices when using a KrakenD API Gateway.
I presume it is possible as I have had it working with both an NGINX Load Balancer and an Emissary API Gateway respectively.

KrakenD, to my current understanding, seems a lot faster then both protocols. So it should be better to handle large amounts of real time data.

If anyone has any advice, has done this before or could supply me with an example krakend.json configuration example that would be much appreciated.
i.e. my current one below:

{
  "version": 2,
  "extra_config": {},
  "timeout": "3000ms",
  "cache_ttl": "300s",
  "output_encoding": "json",
  "name": "KrakenGateway",
  "port": 8080,
  "endpoints": [
    {
      "endpoint": "/foohubname",
      "backend": [
        {
          "url_pattern": "/ws",
          "disable_host_sanitize": true,
          "host": [ "ws://signalrservicename:80/foohubname" ]
        }
      ],
      "extra_config":{
        "github.com/devopsfaith/krakend-websocket": {
            "headers_to_pass":["Cookie"],
            "connect_event": true,
            "disconnect_event": true
        }
      }
    }
  ]
}

Have a great day,
Matt