用websocket测试工具能连，用AsyncTcpConnection提示Sec-WebSocket-Accept not found

用在线测试工具能连接，用workerman连接提示如下：

Sec-WebSocket-Accept not found. Header:
HTTP/1.1 404 Not Found
Date: Sat, 17 Nov 2018 00:37:42 GMT
Content-Type: text/html;charset=iso-8859-1
Content-Length: 232
Connection: keep-alive
Cache-Control: must-revalidate,no-cache,no-store
binace connection closed
not foundokex connection closed

代码如下：// ssl需要访问443端口

$con = new AsyncTcpConnection('ws://*.*.com:10440/ws/v1');
// 设置以ssl加密方式访问，使之成为wss
$con->transport = 'ssl';
$con->onConnect = function ($con) {
    echo "connect ...\r\n";

};
$con->onMessage = function ($con, $data) {

};
$con->onClose = function($con){
    echo "connection closed\n";

};
$con->connect(); 

浏览器里能连接，回复如下：

Connection:
upgrade

Date:
Sat, 17 Nov 2018 01:13:16 GMT

sec-websocket-accept:
XQNrDkn+vJ8+BpLIidRiEHyfGFo=

Server:
nginx

upgrade:
websocket