SyncEvent.tag

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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

Syntax

var tag = SyncEvent.tag

Value

TheĀ developer-defined identifier for thisĀ SyncEvent.

Specifications

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

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
tag
ExperimentalNon-standard
Chrome Full support 49Edge Full support ā‰¤79Firefox ? IE ? Opera ? Safari ? WebView Android No support NoChrome Android Full support 49Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android Full support 5.0

Legend

Full support Ā 
Full support
No support Ā 
No support
Compatibility unknown Ā 
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.