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.
The FetchEvent()
constructor creates a new FetchEvent
object.
var myFetchEvent = new FetchEvent(type, init);
request
: The Request
object that would have triggered the event handler.clientId
: The Client
that the current service worker is controlling. This property is not yet implemented in Chrome.isReload
: A Boolean
that signifies whether the page was reloaded or not when the event was dispatched. true
if yes, and false
if not. Typically, pressing the refresh button in a browser is a reload, while clicking a link and pressing the back button is not. If not present, it defaults to false
.Specification | Status | Comment |
---|---|---|
Service Workers The definition of 'FetchEvent' in that specification. | Working Draft | Initial definition. |
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 49.0 | 44.0 (44.0)[1] | No support | 24 | No support |
Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|---|
Basic support | No support | 49.0 | 44.0 (44.0) | (Yes) | No support | ? | No support | 49.0 |
[1] Service workers (and Push) have been disabled in the Firefox 45 Extended Support Release (ESR.)
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/FetchEvent/FetchEvent