go - How to unmarshal an escaped JSON string

Question

I am using Sockjs with Go, but when the JavaScript client send json to the server it escapes it, and send's it as a []byte. I'm trying to figure out how to parse the json, so that i can read the data. but I get this error.

json: cannot unmarshal string into Go value of type main.Msg

How can I fix this? html.UnescapeString() has no effect.

val, err := session.ReadMessage()
if err != nil {
break
}
var msg Msg

err = json.Unmarshal(val, &msg)

fmt.Printf("%v", val)
fmt.Printf("%v", err)

type Msg struct {
    Channel string
    Name    string
    Msg     string
}

//Output
"{"channel":"buu","name":"john", "msg":"doe"}"
json: cannot unmarshal string into Go value of type main.Msg

Answer 1

Waitting for answers