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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 getRegistration() method of the ServiceWorkerContainer interface gets a ServiceWorkerRegistration object whose scope URL matches the provided document URL. The method returns a Promise that resolves to a ServiceWorkerRegistration or undefined.
Syntax
ServiceWorkerContainer.getRegistration(scope).then(function(ServiceWorkerRegistration) { ... });
Parameters
scopeOptional- A unique identifier for a service worker registration — the scope URL of the registration object you want to return. This is usually a relative URL.
Returns
A Promise that resolves to a ServiceWorkerRegistration object, or undefined.
Example
navigator.serviceWorker.getRegistration('/app').then(function(registration) {
document.querySelector('#status').textContent = 'ServiceWorkerRegistration found.';
});
Specifications
| Specification | Status | Comment |
|---|---|---|
| Service Workers The definition of 'ServiceWorkerContainer' in that specification. |
Working Draft | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 40.0 | 44.0 (44.0)[1] | No support | 24 | No support |
| Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|
| Basic support | ? | 44.0 (44.0) | (Yes) | No support | ? | No support | 40.0 |
[1] Service workers (and Push) have been disabled in the Firefox 45 Extended Support Release (ESR.)