WebSocket连接失败：连接建立错误：net :: ERR_SSL_PROTOCOL_ERROR

Question

当我试图通过wss：//连接到WebSocket时，我为什么会得到这个错误，但是在ws：//上却没问题呢？

错误：

WebSocket connection failed: Error in connection establishment: net::ERR_SSL_PROTOCOL_ERROR

代码：

package main

import (
    "fmt"
    "log"
    "net/http"
    //"encoding/json"
    "github.com/gorilla/websocket"
)

var clients map[*websocket.Conn]*Client

var upgrader = websocket.Upgrader{
    CheckOrigin : func(r *http.Request) bool{
        return true
    },
}

type Client struct{
    session_id  string
    block_id    uint
    module      string
}

func main(){
    var port uint = 8000

    http.HandleFunc("/", handleConnections)

    log.Printf("Websocket server started on: %d", port)
    err := http.ListenAndServe(fmt.Sprintf(":%d", port), nil)
    if err != nil {
        log.Fatal("ListenAndServe: ", err)
    }
}

func handleConnections(w http.ResponseWriter, r *http.Request){
    //  Upgrade initial GET request to a websocket
    ws, err := upgrader.Upgrade(w, r, nil)
    if err != nil {
        log.Print(err)

        return
    }

    defer ws.Close()

    log.Print("Connection established to IP: ", r.RemoteAddr)

    ...
}

Answer 1

Your server is only listening for HTTP connections so you should use ws when making a connection. wss is "WebSocket Secure" which really just means a WebSocket connection that is served over HTTPS (TLS)

From the RFC 6455

A |wss| URI identifies a WebSocket server and resource name and
indicates that traffic over that connection is to be protected via
TLS (including standard benefits of TLS such as data confidentiality
and integrity and endpoint authentication).