Polymer PWA Elements — App Shell, Offline, and Push Notifications

In this tutorial, you will learn about Polymer PWA Elements. We cover key concepts, practical examples, and best practices to help you master this topic.

Polymer provides ready-made elements for progressive web apps through the @polymer/app-layout and @polymer/pwa-helpers packages.

<!-- App shell with responsive layout -->
<app-header-layout>
  <app-header slot="header" fixed>
    <app-toolbar>
      <div title>My App</div>
    </app-toolbar>
  </app-header>
  <div>Main content</div>
</app-header-layout>