Apple may integrate Service Workers into WebKit, support next-gen web apps in Safari

Apple’s WebKit Feature Status page listed Service Workers as “In Development” in August 2017. The API lets browsers run background scripts, which is what makes Progressive Web Apps possible.

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• PWAs skip the download step: users point a browser at a site, and the app can be added to a home screen from there, push notifications included.
• Service Workers let a PWA fetch cached content and run without a network connection, and also improve how well the app gets indexed by search engines.
• Google was pushing the initiative as the party with the most to gain from browser-based apps; Mozilla, Opera, and Microsoft had already signed on.
• Wide adoption would shift where the power sits: developers ship one app instead of one per OS, and users stop depending on app stores for installs and updates.
• Apple hadn’t said anything official about its plans beyond the WebKit status change.