Andrew Guan
Demián Renzulli
In some scenarios the service worker might need to proactively communicate with any of the active tabs it controls to inform of a certain event. Examples include:
- Informing the page when a new version of the service worker has been installed, so that the page can show an "Update to refresh" button to the user to access the new functionality immediately.
- Letting the user know about a change on cached data that took place on the service worker side, by showing an indication, like: "The app is now ready to work offline", or "New version of the content available".
