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ServiceWorkerContainer.getRegistration

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

scope Optional
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.)

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https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/getRegistration