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

The getRegistrations() method of the ServiceWorkerContainer interface returns all ServiceWorkerRegistrations associated with a ServiceWorkerContainer in an array. If the method can't return ServiceWorkerRegistrations, it returns a Promise.


ServiceWorkerContainer.getRegistrations().then(function(ServiceWorkerRegistrations) { ... });



Return value

A Promise that resolves to an array of ServiceWorkerRegistration objects.


navigator.serviceWorker.getRegistrations().then(function(registrations) {
  document.querySelector('#status').textContent = 'ServiceWorkerRegistrations found.';


Specification Status Comment
Service Workers
The definition of 'getRegistrations()' in that specification.
Working Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Chrome Full support 45Edge Full support 17
Full support 17
Full support 16
Disabled From version 16: this feature is behind the Enable service workers preference.
Firefox Full support 44
Full support 44
Notes Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR).
IE No support NoOpera Full support 27Safari Full support 11.1WebView Android Full support 40Chrome Android Full support 45Edge Mobile ? Firefox Android Full support 44Opera Android Full support 27Safari iOS Full support 11.1Samsung Internet Android Full support 4.0


Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

Document Tags and Contributors

Last updated by: mfluehr,