如何实现WebSocket与启用SSL的服务器通信？

Question

我正在尝试在客户端“ Web浏览器”和Windows 2008 R2上运行的Apache 2.4 / PHP 5.6服务器之间实现WebSocket通信。

假定我的应用程序正在此URL“ HTTPS”上运行https://myApllication.example.com

我不确定在此之前是否需要在服务器上安装某些东西。

到目前为止，我的代码看起来像这样

$(function(){
    if(!("WebSocket" in window)){

        console.log('your browser does not support WebSocket'); 
    } else {

        connect();

        $('#disconnect').click(function(){
            socket.close();
        });
    }


    function connect(){
            var socket;
            var host = "ws://myApplication.example.com:8000/dev/icws/poll2.php";

            try{
                var socket = new WebSocket(host, {
                    protocolVersion: 13, 
                    origin: 'https://www.example.com'
                });
                message('Socket Status: '+socket.readyState);
                socket.onopen = function(){
                    message('Socket Status: '+socket.readyState+' (open)'); 
                }

                socket.onmessage = function(msg){
                    message('Received: ' + msg.data);                   
                }

                socket.onclose = function(){
                    message('Socket Status: '+ socket.readyState + ' (Closed)');
                }           

            } catch(exception){
                message(exception);
            }
        } //End connect()   

        function message(msg){
            console.log(msg);
        }//End message()


    });

这段代码会在控制台中给我这个错误。

DOMException [SecurityError: "The operation is insecure."
code: 18
nsresult: 0x80530012

这是我的poll2.php脚本的样子

<?php
    header("Content-Type: text/event-stream" . PHP_EOL);
    header("Cache-Control: no-cache" . PHP_EOL);

    echo "data: {mykey: 'myvalue', eventName: 'eventName'}" . PHP_EOL . PHP_EOL;

?>

**编辑**从更改主机后

var host = "ws://myApplication.example.com:8000/dev/icws/poll2.php";

至

var host = "wss://myApplication.example.com:8000/dev/icws/poll2.php";

我不再收到安全错误，但在控制台中得到了此错误。

Socket Status: 0 (ready)
Socket Status: 3 (Closed)
Firefox can't establish a connection to the server at wss://myApplication.example.com:8000/dev/icws/poll2.php

是什么原因导致无法建立连接？ 我必须在服务器上打开端口8000吗？