ws = new WebSocket("ws://192.168.1.19:8282")
index.html:213 WebSocket connection to 'ws://192.168.1.19:8282/' failed: Error during WebSocket handshake: net::ERR_INVALID_HTTP_RESPONSE
https://www.workerman.net/doc/workerman/faq/client-connect-fail.html#%E5%85%B6%E5%AE%83%E6%8A%A5%E9%94%99
https://www.workerman.net/doc/workerman/faq/client-connect-fail.html#%E5%85%B6%E5%AE%83%E6%8A%A5%E9%94%99