https://ymedialabs.com/progressive-web-apps
https://medium.com/@firt/progressive-web-apps-on-ios-are-here-d00430dee3a7
Tuto for progressive webapps
https://web.dev/devices-introduction/
https://hacks.mozilla.org/2018/05/progressive-web-apps-core-guides-on-mdn-web-docs/
https://developers.google.com/web/progressive-web-apps/
https://developers.google.com/web/fundamentals/instant-and-offline/web-storage/offline-for-pwa
https://developers.google.com/web/tools/lighthouse/audits/address-bar
https://addyosmani.com/blog/getting-started-with-progressive-web-apps/
https://www.smashingmagazine.com/2016/08/a-beginners-guide-to-progressive-web-apps/
https://medium.com/javascript-scene/native-apps-are-doomed-ac397148a2c0#.nt5zaeg30
Ressources
https://developer.mozilla.org/en-US/Apps/Progressive
https://hacks.mozilla.org/2016/10/offline-strategies-come-to-the-service-worker-cookbook/
https://dev.opera.com/articles/pwa-resources/
https://developers.google.com/web/tools/workbox/
Handling touch events
https://www.smashingmagazine.com/2015/03/better-browser-input-events/
https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent
Pokedex feedback
http://www.pocketjavascript.com/blog/2015/11/23/introducing-pokedex-org
Save for later & auto detect back online
https://una.im/save-offline/
https://www.twilio.com/blog/2017/02/send-messages-when-youre-back-online-with-service-workers-and-background-sync.html