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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.

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

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`TaskAttributionTiming`	58	79	No	45	No	58	No	43	No	7.0	58	No
`containerId`	58	79	No	45	No	58	No	43	No	7.0	58	No
`containerName`	58	79	No	45	No	58	No	43	No	7.0	58	No
`containerSrc`	58	79	No	45	No	58	No	43	No	7.0	58	No
`containerType`	58	79	No	45	No	58	No	43	No	7.0	58	No
`toJSON`	58	79	No	45	No	58	No	43	No	7.0	58	No

TaskAttributionTiming

Instance properties

Instance methods

Specifications

Browser compatibility

See also