TaskAttributionTiming

Limited availability

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

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

The TaskAttributionTiming interface returns information about the work involved in a long task and its associate frame context. The frame context, also called the container, is the iframe, embed or object that is being implicated, on the whole, for a long task.

You usually work with TaskAttributionTiming objects when observing long tasks.

TaskAttributionTiming inherits from PerformanceEntry.

PerformanceEntry TaskAttributionTiming

Instance properties

This interface extends the following PerformanceEntry properties for event timing performance entry types by qualifying them as follows:

PerformanceEntry.duration Read only Experimental

Always returns 0, as duration is not applicable for this interface.

PerformanceEntry.entryType Read only Experimental

Always returns taskattribution.

PerformanceEntry.name Read only Experimental

Always returns "unknown".

PerformanceEntry.startTime Read only Experimental

Always returns 0.

This interface also supports the following properties:

TaskAttributionTiming.containerType Read only Experimental

Returns the type of frame container, one of iframe, embed, or object.

TaskAttributionTiming.containerSrc Read only Experimental

Returns the container's src attribute.

TaskAttributionTiming.containerId Read only Experimental

Returns the container's id attribute.

TaskAttributionTiming.containerName Read only Experimental

Returns the container's name attribute.

Instance methods

TaskAttributionTiming.toJSON() Experimental

Returns a JSON representation of the TaskAttributionTiming object.

Specifications

Specification
Long Tasks API
# sec-TaskAttributionTiming

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
TaskAttributionTiming
Experimental
containerId
Experimental
containerName
Experimental
containerSrc
Experimental
containerType
Experimental
toJSON
Experimental

Legend

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Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.
See implementation notes.

See also