Some issues preventing this from being a full PWA

[omgmog]

According to the tests in Paul Kinlan's Progressive Web App Checklist bookmarklet:

• [x] Manifest has been fetched
• [x] Site is on HTTPS
• [x] All assets are on https
• [x] Site has a canonical URL
• [x] Site manifest has theme_color
• [x] Site manifest has background_color
• [x] Site manifest has start_url
• [x] Site manifest has short_name
• [x] Site manifest has name
• [x] Site manifest has icons defined
• [x] Site manifest has 192px icon
• [x] Site is currently controlled by a service worker
• [x] Site is has a service worker registration
• [x] Site has cached data. Might work offline
• [x] All Requests made from the page are in the cache

[omgmog]

I think once all of these are fulfilled, Chrome on Android can prompt to "Add to homescreen" automatically!

[danielthepope]

Nice checklist! Most of those seem easily fixable too 👍

[danielthepope]

Done! Just in time for Oreo to change how PWA icons look on the homescreen. The service worker isn't exactly useful - that'll be another issue to fix.