WebAppify: Cache, ToolChain and Workflow
Library for building offline-first browser-based applications
https://github.com/sshyran/metadata.js
https://www.html5rocks.com/en/tutorials/appcache/beginner/
https://alistapart.com/article/application-cache-is-a-douchebag/
https://github.com/sshyran/appcache-demo
https://developers.google.com/web/
https://developers.google.com/web/progressive-web-apps/
https://developers.google.com/web/progressive-web-apps/desktop
JavaScript libraries for Progressive Web Apps
https://github.com/sshyran/workbox
https://github.com/sshyran/webapp.go
https://github.com/sshyran/werkzeug
https://github.com/sshyran/gif2html5-app - check dependencies !!!!