Pwa

Progressive Web Apps

https://developers.google.com/web/fundamentals/getting-started/codelabs/your-first-pwapp/

https://www.smashingmagazine.com/2016/08/a-beginners-guide-to-progressive-web-apps/

https://addyosmani.com/blog/getting-started-with-progressive-web-apps/

https://medium.com/@addyosmani/progressive-web-apps-with-react-js-part-i-introduction-50679aef2b12#.fl4h3n2le

https://greenido.wordpress.com/2016/04/04/how-to-build-a-progressive-web-app/

https://github.com/glennwedin/Progressive-Web-App

https://github.com/googlecodelabs/your-first-pwapp

https://codelabs.developers.google.com/codelabs/your-first-pwapp/#3

webworkers service workers

https://developers.google.com/web/fundamentals/getting-started/primers/service-workers

http://www.codingdefined.com/2016/10/getting-started-with-web-workers-in.html

https://github.com/jakearchibald/simple-serviceworker-tutorial