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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 ServiceWorkerRegistrations associated with a ServiceWorkerContainer in an array. If the method can't return ServiceWorkerRegistrations, 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.)