This article is in need of a technical review.
This article is in need of an editorial review.
This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use 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 spec changes.
The parameter passed into the ServiceWorkerGlobalScope.onfetch handler, FetchEvent represents
Constructor
Properties
Inherits properties from its ancestor, Event.
PromiseRejection.promiseRead only- TBD
PromiseRejection.reasonRead only- TBD
Specifications
| Specification | Status | Comment |
|---|---|---|
| Unhandled Rejection Tracking Browser Events The definition of 'PromiseRejectionEvent' in that specification. |
Editor's Draft | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 40.0 | Not supported | Not supported | 24 | Not supported |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | Not supported | ? | Not supported | Not supported | Not supported | ? | Not supported | 44.0 |