message: Fix 400 for websockets.
diff: @@ -124,12 +124,14 @@ func (p *Proxy) ServeHTTP(w http.ResponseWriter, r *http.Request) {
  continue
  }
  - for _, protocol := range value {
  + for _, protocols := range value {
  + for _, protocol := range strings.Split(protocols, ", ") {
  if protocol == "base64.binary.k8s.io" {
  subProtocol = "base64.binary.k8s.io"
  }
  }
  }
  + }
  config := &websocket.Config{
  Location: r.URL,
  