Long Tasks API

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

Concepts and Usage



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


Specification Status Comment
Long Tasks API 1 Editor's Draft Initial definition.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 58 ? ? ? ?
Feature Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support 58 58 ? ? ? ? ?

Document Tags and Contributors

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