在此页

• 句法
• 范例
• 浏览器兼容性
• 另请参阅
• 相关话题

弃用
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the 兼容性表格 at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

FetchEvent.client read-only property returns the Client that the current service worker is controlling.

注意 : This feature has been deprecated, with its functionality replaced by FetchEvent.clientId and Clients.get() 。见 this Github issue for discussion/background.

句法

var myClient = FetchEvent.client;
					

值

A Client 对象。

范例

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

浏览器兼容性

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
client 弃用 非标	Chrome 42	Edge ≤79	Firefox 44	IE 不支持 No	Opera 27	Safari 不支持 No	WebView Android 42	Chrome Android 44	Firefox Android 不支持 No	Opera Android ?	Safari iOS 不支持 No	Samsung Internet Android 4.0

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

非标。预期跨浏览器支持较差。

弃用。不要用于新网站。

弃用。不要用于新网站。

另请参阅

• 使用服务工作者
• 服务工作者基本代码范例
• ServiceWorker 就绪了吗？
• Promise
• Using web workers

元数据

• 最后修改： Dec 27, 2019

相关话题

1. 服务工作者 API
2. FetchEvent
3. 构造函数

   1. FetchEvent()
4. 特性

   1. client
   2. clientId
   3. isReload
   4. navigationPreload
   5. PreloadRequest
   6. preloadResponse
   7. replacesClientId
   8. request
   9. resultingClientId
5. 方法

   1. respondWith()
6. 继承：

   1. 事件
7. Related pages for Service Workers API

   1. 缓存
   2. CacheStorage
   3. Client
   4. Clients
   5. ExtendableEvent
   6. InstallEvent
   7. Navigator.serviceWorker
   8. NotificationEvent
   9. PeriodicSyncEvent
   10. PeriodicSyncManager
   11. PeriodicSyncRegistration
   12. ServiceWorker
   13. ServiceWorkerContainer
   14. ServiceWorkerGlobalScope
   15. ServiceWorkerRegistration
   16. SyncEvent
   17. SyncManager
   18. SyncRegistration
   19. WindowClient