feat: add service worker module

[pemrouz]

No description provided.

[3liv]

I've been looking at this. Only chrome supports background sync and would need to update offline module to use indexedDB as localstorage not available from service workers

Sent from my iPhone

On 26 Sep 2016, at 02:33, Pedram Emrouznejad notifications@github.com wrote:

—
You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub, or mute the thread.

[pemrouz]

Agreed 👍 , this should be a nice progressive enhancement that will automatically boost apps when used in a browser that supports ServiceWorker (can use the same cache header info). If there is no ServiceWorker, the offline module should still use the localStorage trick as that still goes a long way in boosting perceived load times in current browsers.