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ServiceWorkerContainer.getRegistrations

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 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.

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.
Working Draft Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 40 17
17
16
Disabled
Disabled From version 16: this feature is behind the Enable service workers preference.
44
44
Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR).
No 27 11.1
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 40 40 ? 44 27 11.1 4.0

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/getRegistrations