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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

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support40



442 No27 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support4040 ?4427 No4.0

1. From version 16: this feature is behind the Enable service workers preference.

2. Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR).

Document Tags and Contributors

Contributors to this page: fscholz, abbycar, jpmedley, chrisdavidmills, Speculative, kscarfone
Last updated by: fscholz,