ServiceWorkerContainer: getRegistration() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The getRegistration() method of the ServiceWorkerContainer interface gets a ServiceWorkerRegistration object whose scope URL matches the provided client URL. The method returns a Promise that resolves to a ServiceWorkerRegistration or undefined.

Syntax

js
getRegistration()
getRegistration(clientURL)

Parameters

clientURL Optional

The registration whose scope matches this URL will be returned. Relative URLs are resolved with the current client as the base. If this parameter is not provided, the current client's URL will be used by default.

Return value

A Promise that resolves to a ServiceWorkerRegistration object or undefined.

Examples

js
navigator.serviceWorker.getRegistration("/app").then((registration) => {
  if (registration) {
    document.querySelector("#status").textContent =
      "ServiceWorkerRegistration found.";
  }
});

Specifications

Specification
Service Workers Nightly
# navigator-service-worker-getRegistration

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
getRegistration
Chrome – Full support
Chrome 40 (Release date: 2015-01-21)
footnote Full support
Edge – Full support
Edge 17 (Release date: 2018-04-30)
footnote Full support
Firefox – Full support
Firefox 44 (Release date: 2016-01-26)
footnote Full support
Opera – Full support
Opera 27 (Release date: 2015-01-27)
footnote Full support
Safari – Full support
Safari 11.1 (Release date: 2018-04-12)
footnote Full support
Chrome Android – Full support
Chrome Android 40 (Release date: 2015-01-21)
footnote Full support
Firefox for Android – Full support
Firefox for Android 44 (Release date: 2016-01-26)
footnote Full support
Opera Android – Full support
Opera Android 27 (Release date: 2015-01-29)
footnote Full support
Safari on iOS – Full support
Safari on iOS 11.3 (Release date: 2018-03-29)
footnote Full support
Samsung Internet – Full support
Samsung Internet 4 (Release date: 2016-03-11)
footnote Full support
WebView Android – Full support
WebView Android 40 (Release date: 2015-01-21)
footnote Full support
WebView on iOS – No support
WebView on iOS
footnote No support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support