PerformanceLongTaskTiming

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

The PerformanceLongTaskTiming interface of the the Long Tasks API reports instances of long tasks.

Properties

PerformanceLongTaskTiming.attribution Read only
Returns a sequence of TaskAttributionTiming instances.

Specifications

Specification Status Comment
Long Tasks API 1
The definition of 'PerformanceLongTaskTiming' in that specification.
Working Draft Initial definition.

Browser Compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
PerformanceLongTaskTiming
Experimental
Chrome Full support 58Edge ? Firefox No support No
Notes
No support No
Notes
Notes See bug 1348405.
IE ? Opera Full support YesSafari ? WebView Android Full support 58Chrome Android Full support 58Firefox Android No support No
Notes
No support No
Notes
Notes See bug 1348405.
Opera Android Full support YesSafari iOS ? Samsung Internet Android Full support Yes
attribution
Experimental
Chrome Full support 58Edge ? Firefox No support NoIE ? Opera Full support YesSafari ? WebView Android Full support 58Chrome Android Full support 58Firefox Android No support NoOpera Android Full support YesSafari iOS ? Samsung Internet Android Full support Yes

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.
See implementation notes.
See implementation notes.