FetchEvent.clientId

在此页

clientId 只读特性在 FetchEvent interface returns the id of the Client that the current service worker is controlling.

Clients.get() method could then be passed this ID to retrieve the associated client.

var myClientId = fetchEvent.clientId;

A DOMString that represents the client ID.

self.addEventListener('fetch', function(event) {
  console.log(event.clientId);
});

规范	状态	注释
服务工作者 The definition of 'clientId' in that specification.	工作草案	初始定义。

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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`clientId`	Chrome 49	Edge ≤79	Firefox 45 注意事项 45 注意事项 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE 不支持 No	Opera 36	Safari 不支持 No	WebView Android 49	Chrome Android 49	Firefox Android 45	Opera Android 36	Safari iOS 不支持 No	Samsung Internet Android 5.0