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
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge Mobile ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
attribution | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge 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
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge Mobile ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
containerId | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge Mobile ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
containerName | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge Mobile ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
containerSrc | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge Mobile ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
containerType | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge 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.