fantasai

Summary

Works almost entirely in WebCore layout and CSS, with recurring clusters around anchor positioning (position-visibility aliases, position-area scrollable rects, fixed/sticky anchor interactions), writing modes and multicol, plus occasional font metadata and CoreText glyph plumbing in Platform. The pattern is spec-conformance and new-feature layout work — WPT re-imports, form-control appearance (`base-select`, `::picker-icon`), and refactors that split or rename layout entry points like `computeOverflow` and `requiresColumns` — with nothing classified as security or hardening. The audit angle: several of the anchor-positioning commits fix stale or overcompensated cached geometry (`m_adjustmentForViewport` after snapshot removal, nested fixed anchors, sticky ancestors), a young code path where invalidation and cache-lifetime mismatches are still surfacing.

Components

Security Fix History

• No security fixes recorded

Hardening Commits

• No hardening commits recorded

Recent Commits

• 2026-07-27 appearance: base-select select styling lacks adequate polish and professionalism
• 2026-07-20 Create FlowMode to allow using WritingMode APIs with e.g. flex-flow
• 2026-07-13 Synchronize Font metadata representation (size, orientation, etc.)
• 2026-07-09 Fix out-of-sync m_adjustmentForViewport after snapshot removal
• 2026-06-08 Fix scroll overcompensation of fixed anchor-positioned elements when nested
• 2026-06-06 Anchor positioning: abspos elements can anchor to viewport-fixedpos elements
• 2026-05-13 Give requiresColumns() a better name and also remove unnecessary parameter
• 2026-05-12 Treat `column-count: 1` as `column-count: auto` in Apple Books
• 2026-04-28 Use new, more performant CoreText color glyph check API
• 2026-04-28 Fix incorrect nesting of m_glyphsWithComplexColorFormat reset.
• 2026-04-27 Accept anchor-* as aliases of anchors-* in position-visibility
• 2026-04-03 Invert random() caching behavior to match spec
• 2026-03-30 Fixed boxes anchored to children of sticky boxes should stick
• 2026-03-22 Add ::picker-icon to assert in RenderStyle::createAnonymousStyleWithDisplay
• 2026-02-14 Give position-area a more accurate scrollable rect and apply to all scrollers
• 2026-02-14 Split computeOverflow into separate in-flow and out-of-flow methods
• 2026-02-12 Rebaseline sequoia test to account for 307212@main
• 2026-02-10 Block container inline-axis overflow includes padding + block-level child margins
• 2026-02-06 Re-import css/css-overflow WPT
• 2026-02-05 Re-import css/css-anchor-position WPT
• 2026-01-27 Revert incorrect stretch alignment test in aspect-ratio dependency check
• 2026-01-16 Rebaseline negative-overflow-002.html on iOS
• 2026-01-14 Fix RTL grid scrollable area to account for grid and scrollbars correctly
• 2026-01-09 Set containing block of grid-lanes items to container size in the stacking axis
• 2026-01-08 Handle padding and margins correctly for flex and grid in all writing modes
• 2026-01-08 Untangle grid self-alignment code
• 2026-01-06 Refactor self-alignment property resolution to manage 'auto' instead of 'normal'
• 2025-12-05 Update grid-lanes test expectations
• 2025-12-03 Fix auto-placement cursor for spanning items in grid-lanes layout
• 2025-12-03 place item immediately after previous, even if negative margins moved it up
• 2025-11-29 Support automatic initial value for grid-auto-flow [css-grid-3][masonry]
• 2025-11-07 Support 'display: masonry' so we can run WPT tests [css-grid-3]
• 2025-11-04 REGRESSION(300921@main): Exclude fixed-positioned boxes from position-area scrollable CB
• 2025-10-31 Ensure that fixed anchor positioned boxes can be scrolled into view
• 2025-10-29 position-area normal alignment with single auto inset aligns towards opposite side
• 2025-10-28 Enable safe scrollable overflow of scrollable containing blocks by default
• 2025-10-28 Clean up static alignment code in PositionedLayoutConstraints