Progressive Web Apps – Where Do I Begin?

Progressive Web Apps – Where Do I Begin? is not mainly about the Service Worker. Aaron is pointing out that a Progressive Web App aims to enhance – progress – an already great experience of a website with performance, less network reliance, offline capabilities, and engagement. It´s a chain of: focusing on what matters most for a particular web page to create a great core experience (start with words); writing semantic markup to support the core experience; designing with CSS to support the core experience; and finally using JavaScript to support the core experience.