Get more from the Debugger tab in Web Inspector: customizing breakpoints with conditions and actions for logging and executing scripts, and creating probe expressions.
Targeting Domains with Content Blockers
Content Blockers extensions are enjoying a tremendous success on iOS and Mac — especially domain-based blockers.
Introducing Slot-Based Shadow DOM API
We’re pleased to announce that basic support for the new slot-based shadow DOM API is now available in the nightly builds.
ECMAScript 6 in WebKit
In Safari 9 for OS X and iOS 9 you’ll be able to use some great ES6 features — there are even more you can try out if you run the nightly build.
Web Inspector Keyboard Shortcuts
To help you become more efficient, Web Inspector includes keyboard shortcuts for many commonly used actions.
Scroll Snapping with CSS Snap Points
WebKit now supports paginated scrolling through CSS Snap Points — making sophisticated paginated scrolling a snap.
Introducing the Rendering Frames Timeline
Web Inspector includes a new tool to help locate and resolve rendering performance issues — in addition to the familiar event-based timelines.
Styles Sidebar Refinements in Web Inspector
Learn about the various enhancements we made to Web Inspector’s Style sidebar in Safari 9 — such as text filtering and intelligent editing.
Complex CSS Selectors Inside Selectors
WebKit supports many selectors defined in the draft of CSS Selectors Level 4 — like matches(), not(), nth-child(…of…) and nth-last-child(…of…).
Introducing Backdrop Filters
The proposed backdrop-filter property adds a feature that designers have been demanding for some time — allowing for beautiful blur effects.