WebKit

Safari Technology Preview Release 52 is now available for download for macOS Sierra and macOS High Sierra.

HTTP Strict Transport Security (HSTS) is a security standard that provides a mechanism for web sites to declare themselves accessible only via secure connections, and to tell web browsers where to go to get that secure version.

In June of last year, we announced Intelligent Tracking Prevention, or ITP.

Safari Technology Preview Release 51 is now available for download for macOS Sierra and macOS High Sierra.

Today we are happy to provide a solution for embedded cross-site content to authenticate users who are already logged in to first-party services in the form of the Storage Access API.

Safari Technology Preview Release 50 is now available for download for macOS Sierra and macOS High Sierra.

The Service Worker API exposes persistent background processing capabilities to web pages.

Update: A previous version of this post stated the Service Worker API is available in all applications using WKWebView.

Safari Technology Preview Release 49 is now available for download for macOS Sierra and macOS High Sierra.

Safari Technology Preview Release 48 is now available for download for macOS Sierra and macOS High Sierra.