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
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 compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 40 | 17 | 441 | No | 27 | 11.1 |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | 40 | 40 | 17 | 44 | 27 | 11.1 | ? |
1. Service Workers have been disabled in the Firefox 45 and 52 Extended Support Releases
See also
Document Tags and Contributors
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Contributors to this page:
ExE-Boss,
jpmedley,
rowan_m,
chrisdavidmills,
Ehsan,
Sebastianz,
teoli,
kscarfone
Last updated by:
ExE-Boss,