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
A DOMString
.
规范
Specification |
---|
WebSockets # ref-for-dom-websocket-extensions① |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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extensions |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
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.