The 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.
Syntax
ServiceWorkerGlobalScope.onsync = function(SyncEvent) { ... } self.addEventListener('sync', function(SyncEvent) { ... })
Specifications
Specification |
---|
Web Background Synchronization |
Browser compatibility
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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
onsync | Chrome Full support 49 | Edge Full support ≤79 | Firefox
Full support
44
| IE No support No | Opera Full support 24 | Safari Full support 11.1 | WebView Android Full support 49 | Chrome Android Full support 49 | Firefox Android Full support 44 | Opera Android Full support 24 | Safari iOS Full support 11.3 | Samsung Internet Android Full support 5.0 |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- See implementation notes.