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WebSocket.protocol 是一个只读属性用于返回服务器端选中的子协议的名字；这是在创建 WebSocket 对象时所指定的 protocols 参数其中之一的字符串。
语法
var protocol = aWebSocket.protocol;
值
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard WebSocket: protocol |
Living Standard | Initial definition |
Browser compatibility
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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic support | Chrome Full support Yes | Edge ? | Firefox Full support Yes | IE ? | Opera Full support Yes | Safari ? | WebView Android ? | Chrome Android Full support Yes | Edge Mobile ? | Firefox Android Full support Yes | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown