This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The SyncEvent.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.
Syntax
var tag = SyncEvent.tag
Value
The developer-defined identifier for this SyncEvent
.
Specifications
Specification | Status | Comment |
---|---|---|
Web Background Synchronization The definition of 'tag' in that specification. |
Living Standard | Initial definition. |
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
tag | Chrome Full support 49 | Edge Full support ≤79 | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android No support No | Chrome Android Full support 49 | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 5.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- 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.