This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The containerId readonly property of the TaskAttributionTiming interface returns the container's id attribute. A container is the iframe, embed or object etc. that is being implicated, on the whole, for a long task.
var containerId = TaskAttributionTiming.containerId;
A DOMString containing the containers id attribute.
| Specification | Status | Comment |
|---|---|---|
| Long Tasks API 1 The definition of 'containerId' in that specification. | Working Draft | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 58 | ? | ? | ? | ? | ? |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 58 | 58 | ? | ? | ? | ? | ? |
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/TaskAttributionTiming/containerId