Websites are optimized for ease of use, discoverability, and sharing – you’re one URL away with no upfront installs. However, these same sites are now also capable of earning new capabilities: offline, background tasks, notifications, storage, homescreen integration, and more. In effect, they progressively earn “app capabilities” as, and when, needed; they are progressive web apps.
Ilya Grigorik is a web performance engineer at Google, cochair of the W3C Web Performance Working Group, and author of High Performance Browser Networking (O’Reilly). In short, he’s an Internet plumber.
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