Service worker is widely supported by browsers including Safari!(yes that's true) and progressive web app specs in general. You can build a native-app like web application which works offline, have a high performance and fast website by leveraging cache api or simply control your network requests as a powerful tools in client-side.
Target audience: Creative
About the speaker:
Majid (aka mhadaily on Twitter/Github) is a passionate mobile and web developer based in Oslo. He enjoys writing technical articles, meeting developers at events, speaking at conferences and contributing to open source projects. He is author of PWA development course on Packpublishing. Besides coding, he loves to explore the world, read books and make tutorials in order to share his experience and knowledge.