Navigator: serviceWorker property

Secure context

The serviceWorker read-only property of the Navigator interface returns the ServiceWorkerContainer object for the associated document, which provides access to registration, removal, upgrade, and communication with the ServiceWorker.

The feature may not be available in private mode.

Note that a worker can similarly access the ServiceWorkerContainer for a document using serviceWorker.

Value

ServiceWorkerContainer.

Examples

This code checks if the browser supports service workers.

if ("serviceWorker" in navigator) {
  // Supported!
}

Specifications

Browser compatibility

See also

• Service Worker API
• Using Service Workers