Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The sync property of the ServiceWorkerRegistration interface returns a reference to the SyncManager interface, which manages background synchronization processes.
Syntax
var syncManager = serviceWorkerRegistration.sync;
Value
A SyncManager object.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web Background Synchronization | Living Standard | Initial definition. |
Browser compatibility
The compatibility table in 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.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
sync | Chrome Full support 49 | Edge Full support ≤79 | Firefox No support No | IE No support No | Opera Full support 36 | Safari No support No | WebView Android Full support 49 | Chrome Android Full support 49 | Firefox Android No support No | Opera Android Full support 36 | Safari iOS No support No | Samsung Internet Android Full support 4.0 |
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.