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• 句法
• 规范
• 浏览器兼容性
• 相关话题

ServiceWorkerGlobalScope.onsync event of the ServiceWorkerGlobalScope interface is fired whenever a SyncEvent event occurs. This is triggered when a call to SyncManager.register is made from a service worker client page. The attempt to sync is made either immediately if the network is available or as soon as the network becomes available.

句法

ServiceWorkerGlobalScope.onsync = function(SyncEvent) { ... }
self.addEventListener('sync', function(SyncEvent) { ... })
					

规范

规范
Web Background Synchronization

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
onsync	Chrome 49	Edge ≤79	Firefox 44 44 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE No	Opera 24	Safari 11.1	WebView Android 49	Chrome Android 49	Firefox Android 44	Opera Android 24	Safari iOS 11.3	Samsung Internet Android 5.0

图例

完整支持

完整支持

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

见实现注意事项。

元数据

• 最后修改： Jun 17, 2020

相关话题

1. ServiceWorkerGlobalScope
2. 特性

   1. caches
   2. clients
   3. onactivate
   4. onfetch
   5. oninstall
   6. onmessage
   7. onnotificationclick
   8. onnotificationclose
   9. onpush
   10. onpushsubscriptionchange
   11. registration
3. 方法

   1. skipWaiting()
4. 事件

   1. message
   2. notificationclick
5. 继承：

   1. WorkerGlobalScope
   2. EventTarget