Navigator.serviceWorker

The Navigator.serviceWorker read-only property 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.

Syntax

var workerContainerInstance = navigator.serviceWorker;

Value

ServiceWorkerContainer

Examples

This code checks if the browser supports service workers.

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

Specifications

Browser compatibility

See also

• ServiceWorker API
• Using Service Workers