This is a good walkthrough of the flow you’d need to implement if you want to notify users of an updated service worker.
Heydon keeps on delivering the goods. This time, he looks at making on-screen notification messages accessible using ARIA’s live regions.
As ever, structuring content is paramount, even where it pertains to dynamic events inside realtime web applications.
A fantastic piece by Aaron who—once again—articulates what I’ve been thinking:
Your site—every site—should be a PWA.
He clearly explains the building blocks of progressive web apps—HTTPS, a manifest file, and a service worker—before describing different scenarios for different kinds of sites:
Progressive Web Apps may seem overly technical or beyond the needs of your project, but they’re really not. They’re just a shorthand for quality web experiences—experiences that can absolutely make a difference in our users’ lives.
Jason lists the stages of gradually turning the Cloud Four site into a progressive web app:
And you can just keep incrementally adding and tweaking:
You don’t have to wait to bundle up a binary, submit it to an app store, and wait for approval before your customers benefit.
Jason talks through the service worker strategy for his company website.
Jason looks at the business reasons for and against building progressive web apps. In short, there’s everything to gain and nothing to lose.
Seriously, why would you not add a Service Worker and a manifest file to your site? (assuming you’re already on HTTPS)