To use ServiceWorker

[mostafabarmshory]

AppCache is an old API.
Firefox recommend to update it.
Here is console output.

The Application Cache API (AppCache) is deprecated and will be removed at a future date. Please consider using ServiceWorker for offline support.

[orbitbot]

Thanks for the heads-up! As AppCache and ServiceWorker are fundamentally different techniques, a ServiceWorker implementation with a similar API is outside of the scope for this lib and will not be implemented. There may be more up to date resources or libraries available for use already for those with related needs.