3.1.8 初始化示例-仅限websocket传输
const socket=io({
transports:["websocket"]
})
// 重新连接时,将传输选项重置为websocket
// 连接可能失败(由代理、防火墙、浏览器等引起)
socket.on('reconnect_attempt',()=>{
socket.io.opts.transports=['polling','websocket']
})Last updated
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