WebSocket.extensions - Web API 接口参考 编辑

WebSocket.extensions是只读属性，返回服务器已选择的扩展值。目前，链接可以协定的扩展值只有空字符串或者一个扩展列表。

The WebSocket.extensions read-only property returns the extensions selected by the server. This is currently only the empty string or a list of extensions as negotiated by the connection.

语法

var extensions = aWebSocket.extensions;

返回值

A DOMString.

规范

Specification	Status	Comment
HTML Living Standard WebSocket: extensions	Living Standard	Initial definition

浏览器兼容性

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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.