Long Tasks API

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

Concepts and Usage

TBD

Interfaces

PerformanceLongTaskTiming
Reports instances of long tasks.
TaskAttributionTiming
Returns information about the work involved in a long task and its associate frame context.

Specifications

Specification Status Comment
Long Tasks API 1 Working Draft Initial definition.

Browser compatibility

PerformanceLongTaskTiming

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support 58Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support 58Chrome Android Full support 58Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
attribution
Experimental
Chrome Full support 58Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support 58Chrome Android Full support 58Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

TaskAttributionTiming

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support 58Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support 58Chrome Android Full support 58Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
containerId
Experimental
Chrome Full support 58Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support 58Chrome Android Full support 58Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
containerName
Experimental
Chrome Full support 58Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support 58Chrome Android Full support 58Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
containerSrc
Experimental
Chrome Full support 58Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support 58Chrome Android Full support 58Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
containerType
Experimental
Chrome Full support 58Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support 58Chrome Android Full support 58Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

Document Tags and Contributors

Contributors to this page: fscholz, tocretpa, jpmedley
Last updated by: fscholz,