v0.1.13514 Aug 2026·Rendering, Web APIs & DOM, DevTools

DevTools automation: the methods a real driver reaches for

Automation tools and remote inspectors drive a browser over the standard DevTools protocol, and a few of its most-used methods were missing - enough that a driver could connect and query but not fully act. This release fills them in, over the engine's real DOM and layout: querySelectorAll returns every match as a node handle (the backing for a page's $$); getBoxModel and getContentQuads report an element's real on-screen box, which is exactly what a driver reads to compute where to click; focus and scrollIntoViewIfNeeded act on the live element; and getMatchedStylesForNode returns an element's parsed inline style. Each is exercised against the real engine in tests - a three-match querySelectorAll, a box model with a real content quad, a focus that moves the active element, and an inline style parsed to its properties. DevTools moves 42 to 45 and overall 54 to 55.

Parity with the reference browser

74overall, as of v0.1.343

Web APIs / DOM surface42

Security architecture66

GPU / graphics acceleration68

DevTools / extensions72

Networking85

Media85

Accessibility85

Real-world site compatibility99

HTML parsing100

CSS parsing + selectors100

Layout: block / flex / grid / tables / writing-modes100

Paint + visual100

JavaScript language100

JavaScript performance (JIT)100

HTML parsing100

What changed 3 changes

Web APIs & DOM	DOM automation methods (the CDP layer, over the real DOM): DOM.querySelectorAll (all matches as node handles), DOM.getBoxModel and DOM.getContentQuads (an element's real layout box, from getBoundingClientRect - what a driver reads to place a click), DOM.focus and DOM.scrollIntoViewIfNeeded (acting on the live element).
Rendering	CSS.getMatchedStylesForNode: an element's inline style parsed into the protocol's property shape (author-rule matching against the cascade is a later step; the inline block is what tooling reads first and it is real).
Web APIs & DOM	Each new method is tested against the engine's own DOM and layout - querySelectorAll finds three of three, getBoxModel returns an eight-value content quad with real width and height, focus moves document.activeElement, and the inline style parses to its properties. Whole conformance suite unchanged.