建议修改如下：

[Leadrive]

1、nginx.conf中，增加/wss二级目录，配置参考如下：

upstream webrtcServer {
server 0.0.0.0:8086;
}
upstream webrtcWSS {
server 0.0.0.0:4443;
}

server {
listen 443 ssl;
server_name webrtc.touroad.cn;
index index.html index.htm index.php;
ssl on;
ssl_certificate /home/ssl/x.xxx.cn.pem;
ssl_certificate_key /home/ssl/x.xxx.cn.key;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;

gzip_min_length 1k;
gzip_comp_level 2;
gzip_types text/plain text/css application/xml image/jpeg image/gif image/png image/jpg text/javascript application/javascript;

location / {
    proxy_pass https://webrtcServer;
    proxy_redirect off;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
}
location /wss {
    proxy_pass https://webrtcWSS;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
}

}

2、flutter-webrtc-server/src/App.js
第79行，修改为

var url = 'wss://' + window.location.hostname + '/wss';

3、flutter-webrtc-demo/lib/src/call_sample/call_sample.dart
第53行，修改为

  _signaling = new Signaling('wss://' + serverIP + '/wss', _displayName)

4、flutter-webrtc-demo/lib/src/call_sample/data_channel_sample.dart
第48行，修改为

  _signaling = new Signaling('wss://' + serverIP + '/wss', _displayName)

这样，客户端就可以不用开4442，4443端口。
通过 wss://x.xxx.cn/ww 就可以访问 wss
供参考。

另外，请教下，有windows版本的客户端demo吗？

[cloudwebrtc]

项目没有使用nginx， 只是简单的node + express.

[cloudwebrtc]

另外，请教下，有windows版本的客户端demo吗？

win/macos/linux 版目前依赖 flutter-desktop-embedding 项目，目前还需要等待 google/flutter-desktop-embedding#107 解决才能往前推进.