v0.1.31725 Sep 2026·Rendering, Web APIs & DOM, Networking, Privacy & Shields, Tabs & interface

Closer to the reference browser, and no more address bar tricks

A round of fixes found by comparing pages side by side with the reference browser. Tables that sites lay out as grids keep their row divider lines, anything sized to the window height (sidebars, full-screen panels) is now the right length, and React's live code previews fill their frame. A page can no longer change the address bar to another site, and a large network provider's check page runs instead of showing a blank screen.

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 6 changes

Web APIs & DOM	Tables that a site lays out as a grid (a CSS framework's documentation does this) keep their row divider lines. We had been treating them as ordinary tables, which dropped the lines.
Tabs & interface	Sizes based on the window height (the vh and dvh units) now use the real window height instead of a guess based on the width, so sidebars and full-height panels are as long as in the reference browser.
Rendering	A column centred with automatic margins and capped at a maximum width is centred and capped again, instead of stretching across the whole row.
Web APIs & DOM	When a minimum or maximum height changes a box's size, content set to fill the box (height 100%) now fills the final size. React's live code previews filled only a quarter of their frame.
Privacy & Shields	A page can no longer point the address bar at a different site through the History API. Like the reference browser, the engine now blocks the attempt with a security error, and pages can create their own DOMException errors.
Networking	Links and scripts that a page adds with JavaScript now resolve against the page's base address (the base tag), like the reference browser does. A security policy declared in the page now only applies to scripts that come after it. Together these let a large network provider's check page run instead of staying blank.