Apple Releases Safari Technology Preview 55 [Download]

Apple has released Safari Technology Preview 55, an update to its browser for those wanting to try the latest web technologies.

Get a sneak peek at upcoming web technologies in macOS and iOS and experiment with these technologies in your websites and extensions.


What's New in Release 55
● CSS
○ Added support for calc() in webkit-gradient and cross-fade
○ Changed :active pseudo class to deactivate when using pressure sensitive trackpad
○ Omitted the default value when serializing font-feature-settings
○ Updated HSL and HSLA parsing to match CSS Color 4

● Web API
○ Enforced content-type for script tags
○ Fixed input.webkitEntries to work as expected when a folder contains accented chars
○ Setting event.returnValue to true is now a no-op

● Rendering
○ Fixed animated GIFs with finite looping to loop the expected number of times
○ Fixed the position of the caret in empty table cells

● Accessibility
○ Added the accessibility events to the HTML attribute names so AOM works with DOM Level 1 events
○ Fixed a hang when triggering an alert from an AOM increment event


● JavaScript
○ Fixed function.prototype.caller to not return generator bodies

● Web Driver
○ Fixed simulated mouse interactions to not be done until the associated DOM events have been dispatched

● Web Inspector
○ Fixed selecting and copying text from a Network tab popover

● Media
○ Added allSamplesInTrackEnqueued event

● WebRTC
○ Fixed a WebRTC data channel issue for non-ASCII characters.

● Security
○ Changed to use CSP and content blockers for sync XHR

● Bug Fixes
○ Fixed an issue that would sometimes incorrectly rule out PDF as a mime type that can be showed
○ Fixed an issue with Command-clicking web app links on icloud.com

You can download Safari Technology Preview from the link below...

Download