WebSocket.extensions

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

**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

规范

Specification
WebSockets Standard
# ref-for-dom-websocket-extensions①

浏览器兼容性

BCD tables only load in the browser