SyncEvent: tag property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Note: This feature is only available in Service Workers.

The tag read-only property of the SyncEvent interface returns the developer-defined identifier for this SyncEvent. This is the value passed in the tag parameter of the SyncEvent() constructor.

Value

The developer-defined identifier for this SyncEvent.

Specifications

Specification
Web Background Synchronization
# ref-for-dom-syncevent-tag

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
tag

Legend

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Full support
Full support
No support
No support
See implementation notes.