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FetchEvent.constructor

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The FetchEvent() constructor creates a new FetchEvent object.

Syntax

var myFetchEvent = new FetchEvent(type, init);

Parameters

type
The type of the Event.
init Optional
An options object containing any custom settings that you want to apply to the event object. Options are as follows:
  • 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.

Specifications

Specification Status Comment
Service Workers
The definition of 'FetchEvent' in that specification.
Editor's Draft Initial definition.

Browser compatibility

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 and 52 Extended Support Releases (ESR.)

See also

© 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/FetchEvent/FetchEvent