The postMessage() method of the DedicatedWorkerGlobalScope interface sends a message to the main thread that spawned it. This accepts a single parameter, which is the data to send to the worker. The data may be any value or JavaScript object handled by the structured clone algorithm, which includes cyclical references.

API DedicatedWorkerGlobalScope Method postMessage Reference Référence Web Workers

API Constructor Experimental Expérimental ExtendableEvent Reference Référence Service Workers ServiceWorker

API data Experimental ExtendableMessageEvent Property Reference Service Workers

API Experimental ExtendableMessageEvent lastEventID Property Reference Service Workers

API Experimental ExtendableMessageEvent origin Property Reference Service Workers

API Experimental ExtendableMessageEvent ports Property Reference Service Workers

API Experimental ExtendableMessageEvent Property Reference Service Workers Source source

API clientId Experimental FetchEvent Property Reference Service Workers

API Constructor Experimental FetchEvent Reference Service Workers ServiceWorker

The activeWorker read-only property of the InstallEvent interface returns the ServiceWorker that is currently actively controlling the page.

activeWorker API InstallEvent Property Reference Service Workers ServiceWorker

The InstallEvent() constructor creates a new InstallEvent object.

API Constructor Experimental Expérimental InstallEvent Reference Service Workers 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.

API Navigator Property Reference Référence Service Workers ServiceWorker

API Experimental Interface NotificationEvent Reference Service Workers ServiceWorker

action API Experimental Expérimental NotificationEvent Property Reference Service Workers ServiceWorker

API Constructor Experimental Expérimental NotificationEvent Reference Référence Service Workers ServiceWorker

API Background Sync Interface Offline PeriodicSyncEvent Reference Référence ServiceWorker Workers

The Push API gives web applications the ability to receive messages pushed to them from a server, whether or not the web app is in the foreground, or even currently loaded, on a user agent. This lets developers deliver asynchronous notifications and updates to users that opt in, resulting in better engagement with timely new content.

API Experimental Landing Notifications Push Reference Service Workers

API Constructor Experimental Push Push API PushEvent Reference Service Workers

API Experimental Interface Push Push API Reference Service Workers

API Experimental Method PushManager Reference Référence Service Workers