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. |
Editor's Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 40 | 44.0 (44.0)[1] | No support | 27 | No support |
Feature | Android Webviw | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | 40 | 40 | 44.0 (44.0) | (Yes) | No support | 27 | No support |
[1] Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)