WebSocket.protocol

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

DOMString.

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
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
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