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navigator.serviceWorker

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

The Navigator.serviceWorker read-only property returns the ServiceWorkerContainer object for the associated document, which provides access to registration, removal, upgrade, and communication with the ServiceWorker.

Syntax

var workerContainerInstance = navigator.serviceWorker;

Value

ServiceWorkerContainer

Examples

This code checks if the browser supports service workers.

if ('serviceWorker' in navigator) {
  // Supported!
}

Specifications

Specification Status Comment
Service Workers
The definition of 'navigator.serviceWorker' in that specification.		 Working Draft Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 40 17
17
16
Disabled
Disabled From version 16: this feature is behind the Enable service workers preference.
 44
44
Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR).
 No 27 11.1
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 40 40 ? 44 27 11.1 ?

See also

Edit this page on MDN

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https://developer.mozilla.org/en-US/docs/Web/API/navigator/serviceWorker