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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
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.
Returns
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. |
Working Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 45 | 44 (44)[1] | No support | ? | No support |
Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|---|
Basic support | No support | 45 | ? | ? | No support | ? | No support | 45 |
[1] Service workers (and Push) have been disabled in the Firefox 45 Extended Support Release (ESR.)