Overview

The Background Sync API ensures that user actions (like sending a message or uploading a photo) are completed even if the user closes the tab or loses connectivity immediately after performing the action.

How it Works

  1. Register: The application registers a 'sync' event with the Service Worker.
  2. Wait: The browser waits until the device is online.
  3. Execute: The browser wakes up the Service Worker and triggers the sync event, allowing the task to be completed in the background.

Benefits

This API is essential for providing a robust Offline-First experience, as it eliminates the frustration of failed actions due to intermittent connectivity.

Related Terms