implementation-status.md

Implementation and Experimentation Status in Chromium

This page tracks the implementation and experimentation status in Chromium of different features of the various Scheduling APIs. For more information on the various APIs and their statuses, please see the repo's README.

Features and Minimum Versions

Experimental Features

Feature	Flag(s)	Minimum Version
scheduler.yield()	SchedulerYield	113.0.5672.24
TaskSignal.any()	AbortSignalAny	112.0.5599.0

Shipped Features

Feature	Minimum Version
scheduler.postTask() (Window and Workers)	M94
TaskController and TaskSignal	M94
prioritychange events and onprioritychange	M94
TaskPriorityChangeEvent	M94

Local Testing

There are two ways to enable the experimental scheduling features in Chrome:

Method 1: Enable all experimental web platform features by navigating to

chrome://flags/#enable-experimental-web-platform-features

Method 2: Enable just the desired scheduling features by passing the appropriate flags at the command line, for example:

--enable-blink-features=SchedulerYield

Origin Trials

No Origin Trials for scheduling APIs are currently running, but an Origin Trial for scheduler.yield() is being planned for sometime in 2023 Q2.

Examples

Sample code can be found in the explainers.

Filing Issues

For API issues or concerns, please file a GitHub issue.