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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 SyncManager interface of the the ServiceWorker API provides an interface for registering and listing sync registrations.




Create a new sync registration and return a Promise.
Return a list of developer-defined identifiers for SyncManager registration.


Specification Status Comment
Web Background Synchronization
The definition of 'SyncManager' in that specification.
Living Standard Initial definition.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 49.0 (Yes) ? ? ? ?
Feature Android Android Webview Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support No support (Yes) ? ? ? ? ? 49.0

Document Tags and Contributors

 Contributors to this page: libbymc, rolfedh, PushpitaPikuDey, jpmedley, chrisdavidmills
 Last updated by: libbymc,