A simple PWA demo that displays the text "Hello, World!" utilizing an app manifest, service workers and caching. This demo is written in plain-vanilla HTML, CSS and Javascript (ES6). It has no dependencies.

Tutorial: https://medium.com/james-johnson/a-simple-progressive-web-app-tutorial-f9708e5f2605

Demo: https://jamesjohnson280.github.io/hello-pwa/

Browser Compatibility

• Chrome 67 (Windows and Android)
• Firefox 60
• Safari 11
• Edge 42