以本地链接线上websocket为例，如图所示
var ws = new WebSocket("ws://127.0.0.1:6543");
ws.onopen = function()
{
ws.send(JSON.stringify({'type':'bind','uid':1}))
};
步骤一：如果请求域名为http,则可以正常访问，然而当域名为https时，就会报错，如下图所示
错误信息：Mixed Content: The page at ‘https://{域名}.com/‘ was loaded over HTTPS, but attempted to connect to the insecure WebSocket endpoint ‘ws://{ip}:{port}/‘. This request has been blocked; this endpoint must be available over WSS.
Uncaught DOMException: Failed to construct 'WebSocket': An insecure WebSocket connection may not be initiated from a page loaded over HTTPS
步骤二：根据错误提示信息，需要使用wss请求var ws = new WebSocket("wss://127.0.0.1:6543");
这时重新访问，会出现如下图所示信息
错误信息：failed：Error in connection establishment: newt::ERR_SSLPROTOCOL_ERROR
注：在使用https协议时，需要指定域名，这里换成ws = new WebSocket("wss://{域名}/wss");
同时修改nginx配置文件，在conf中加入以下代码
location /wss {
proxy_pass http://172.30.9.176:6543;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
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";
}
重启nginx服务后即可正常通讯