WebSocket.protocol 是个只读属性，用于返回服务器端选中的子协议的名字；这是一个在创建WebSocket 对象时，在参数protocols
语法
var protocol = aWebSocket.protocol;
返回值
规范
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard WebSocket: protocol |
Living Standard | Initial definition |
浏览器兼容性
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
protocol | Chrome Full support Yes | Edge Full support 12 | Firefox Full support Yes | IE ? | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android ? |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown