Navigator: serviceWorker property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

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

The feature may not be available in private mode.

Note that a worker can similarly access the ServiceWorkerContainer for a document using WorkerNavigator.serviceWorker.

Value

Examples

This code checks if the browser supports service workers.

js
if ("serviceWorker" in navigator) {
  // Supported!
}

Specifications

Specification
Service Workers
# navigator-service-worker-attribute

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
serviceWorker

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
See implementation notes.

See also