HTML interactive form validation is now supported in WebKit and enabled by default in Safari Technology Preview 19.

URLs have been used for decades now and you’d would think they would have consistent behavior…

A little over a year ago, we announced the introduction of slot-based shadow DOM API, a lightweight mechanism to encapsulate a DOM tree by allowing the creation of a parallel DOM tree on an element called a “shadow tree” that replaces the rendering of the element without modifying the regular DOM tree.

The Content Security Policy standard lets you define a list of the inline scripts, inline stylesheets, and subresources that your page permits to load.

WebKit’s new feature policy is to implement experimental features unprefixed, behind a runtime flag.

We’re pleased to announce that basic support for the new slot-based shadow DOM API is now available in the nightly builds.

If you’ve been following check-ins for the last year or so, then you already know that some dedicated contributors have been working on a MathML implementation in WebKit.

Today we would like to announce that WebKit is the first browser engine to fully pass Acid3.

In our earlier Acid3 post, I mentioned that the final test we passed, test 79, was super tough.

UPDATE We now believe we have a full rendering pass (but not necessarily an animation smoothness pass yet).