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 ServiceWorkerRegistration
s associated with a ServiceWorkerContainer
in an array. If the method can't return ServiceWorkerRegistration
s, it returns a Promise
.
Syntax
ServiceWorkerContainer.getRegistrations().then(function(ServiceWorkerRegistrations) { ... });
Parameters
None.
Return value
A Promise
that resolves to an array of ServiceWorkerRegistration
objects.
Example
navigator.serviceWorker.getRegistrations().then(function(registrations) { document.querySelector('#status').textContent = 'ServiceWorkerRegistrations found.'; });
Specifications
Specification | Status | Comment |
---|---|---|
Service Workers The definition of 'getRegistrations()' in that specification. |
Editor's Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|---|
Basic support | 45 | (Yes)[2] | 44 (44)[1] | No support | ? | No support |
Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | No support | 45 | ? | ? | No support | ? | No support |
[1] Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)
[2] Service workers is available in Microsoft Edge starting EdgeHTML 16 behind a flag.