Consume lexmount/html5ever at 4574311c63e79bba7d4ddb98cb0562d8dad499ee and remove the XML vendor tree and obsolete ignore exceptions. All 11 production XML source files match the former vendor byte-for-byte; HTML, XML and Stylo still share registry markup5ever 0.40.0 and web_atoms 0.3.0.
Rebased the style stack onto origin/main at ebae4ca6ca.
Validation: Release; cargo fmt --all; strict workspace/all-target/all-feature Clippy; cargo nextest run --no-fail-fast (20413 passed, 18 skipped); 312 paired XML WPT executions and 840 Chromium overflow comparisons with no differences. Full WPT and nine status/subtest-change replays found no new stable regression.
Aggregate physical descendants once instead of treating Taffy's logical
scroll origin as a physical top-left corner. Share reachable scroll bounds
between scrollbar admission and final projection, including vertical writing
modes and reversed flex flows.
Preserve grid track areas, per-axis clipping, transformed borders, normal-flow
margins and end padding. Anchor vertical RTL block flow at the physical bottom
while keeping relative insets physical.
Add five native browser guards and a live Chromium differential covering
140 fixtures, two scrollbar modes and three fresh-document rounds.
Validation: root fmt, strict workspace/all-target/all-feature Clippy, and
Nextest (20380 passed, 18 skipped); Release; 840 Chromium comparisons;
960 flex geometry controls; MOL-463-468 probes; full 13631-case WPT Cross.
Three old/new control rounds found no new stable case, assertion or harness
regression. Cases are refreshed in the following commit.
Original-commit: d433653f0d
Allow quoted font-family names that contain valid identifiers separated
by single spaces to serialize unquoted. Keep the required quoting for reserved
keywords, invalid identifier starts, and repeated or special whitespace.
The rebased branch failed two WPT cases consistently: quoted Twisty Tie /
Times New Roman and Lucida Grande. Preserve the dash and digit guards from
the original fix and update specified/computed regression coverage.
Fixes: ab4dcb281d (PR #1647)
Validation of the complete fix set, with unchanged source content across
the separate logical commits:
- cargo fmt --all
- cargo clippy --workspace --all-targets --all-features -- -D warnings
- cargo nextest run --no-fail-fast: 20374 passed, 18 skipped
Original-commit: c8738725ef
Adopt the separate Taffy distribution fallback correction. Remove the scroll-only branch, preserve flex-start versus safe center behavior in every writing mode, and add a browser regression that checks child positions for visible and scroll overflow.
Validation: cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast (20287 passed, 18 skipped). The combined working tree passed these checks before this logical split. Frozen Release and focused browser/WPT validation also passed; final full WPT is running.
Original-commit: 4d5786f1a1
Adopt the separately validated Taffy fixes for vertical min-content float-grid parents and wrapped RTL flex scroll padding. Preserve the upstream intrinsic keyword result, share one physical flow projection, and cover both browser seams with CLI regression tests.
Validation: cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast (20286 passed, 18 skipped). The combined working tree passed these checks before this logical split. Frozen Release and focused browser/WPT validation also passed; final full WPT is running.
Original-commit: 6374fa6725
Pin the tested Taffy fork with intrinsic flex constraints, supported baseline grouping, wrapped stretch measurement and scroll origin corrections. Reuse the existing shared static fallback and remove duplicate grid coordinate projection.
Validation: cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast (20284 passed, 18 skipped). The combined working tree passed these checks before this logical split. Frozen Release and focused browser/WPT validation also passed; final full WPT is running.
Original-commit: fe7aa2fe70
Subtract horizontal margins for explicit inline-block fit-content widths and carry float min/max-content constraints across the IFC boundary. Cover six font-backed role/keyword combinations, including an inline break that exercises the float path.
Validation: cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast (20284 passed, 18 skipped). The combined working tree passed these checks before this logical split. Frozen Release and focused browser/WPT validation also passed; final full WPT is running.
Original-commit: 00cfb54b45
Map native controls to compressible replaced leaves without the image-only replaced flag. Cover checkbox, radio and range normal alignment at 50 by 50 pixels.
Validation: cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast (20283 passed, 18 skipped). Release v3 and five browser regression rounds. Full WPT recorded separately.
Original-commit: 143e72ec4d
Check strict lexical XML errors before xml5ever tree construction. Cover six malformed attribute/name forms both alone and in a valid XHTML prologue, plus distinct xml:lang/lang namespaces.
Validation: cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast (20283 passed, 18 skipped). Release v3 and five browser regression rounds. Full WPT recorded separately.
Original-commit: 0232344406
Move Taffy to 0.15 and Stylo to 0.22 using fixed fork revisions, with the
matching stylo_taffy adapter. Upgrade cssparser and the production HTML/XML
parsers while preserving the vendored XML behavior.
Adapt sizing inputs, baselines, grid positions, overflow and out-of-flow
ownership. Preserve font-stretch CSSOM compatibility and intrinsic sizing
through nested atomic inline probes.
Validation: root cargo fmt --all; strict workspace/all-target/all-feature
Clippy; Nextest 20280 passed, 18 skipped; Release build; five browser
regression rounds; RTL and nested intrinsic Chromium geometry controls.
Full WPT Cross is recorded separately with its Cases refresh.
Original-commit: 281a920d89
Replay the 43 Moli patches onto upstream 2e4dbc55 while preserving the
0.13 interfaces consumed by Moli and stylo_taffy. Include the upstream
grid loop bounds, definiteness tracking and flex wrapping fixes.
Keep the intrinsic sizing regression fixes and repair the existing RTL
scrollbar inset and wrapped-column baseline failures. Pin the published
fork at 3c19aa124ebcef6320a4e84e141be19f4af659c3.
Validation: cargo fmt --all; strict workspace Clippy; full Nextest
(20279 passed, 18 skipped, NEXTEST_TEST_THREADS=16); Release build;
Taffy native tests (5898 passed, 4 ignored); full WPT Cross plus old/new
three-round retests of all 26 worsened case statuses.
Original-commit: d95b40495e
Resolve percentage padding against the flex containing block while measuring a content flex basis. This keeps the text content width intact before line breaking. The browser regression covers three container widths, four padding percentages and both box-sizing modes.
MOL-467: Taffy 02c4920e93348e20cb197667a366e0a15e91db39. Browser before/after probes retained.
Validation: cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast: 20279 passed,18 skipped.
Original-commit: 8ab5696ccc
Pin the separate Taffy71617899 and4a618c7b fixes: resolve authored intrinsic item minima for auto-track contributions and before fixing the width used to measure row height. A smaller preferred width must not hide the minimum in either path.
MOL-465: browser regression covers min-content/max-content with auto,0px and50px preferred widths, track positions and row heights. The two pre-fix failures were next-column x40 instead of60 and row height60 instead of20. The Webfont grid nontermination control still completes.
cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast:20277 passed,18 skipped. Initial partial-fix failure logs retained.
Original-commit: 3b602b4240
Pin Taffy5453d6cd, whose remaining-growth subtraction uses the same rounded base-plus-increase value as its growability predicate. This prevents a zero-growth iteration from repeating forever.
MOL-464: the new bounded CLI test fails after10s before the pin and passes afterward. The nested grid, percentage margin and Webfont reproducer also completes in0.17s; this trigger hangs in both1.1.17 and1.1.18.
cargo fmt --all; cargo clippy --workspace --all-targets --all-features -- -D warnings; cargo nextest run --no-fail-fast: 20276 passed,18 skipped. A disk-full compilation attempt is retained separately; the successful full retry passes.
Original-commit: 163941940d
Ignore directives containing non-whitespace controls, DEL or non-ASCII
characters. Reserve the first directive name even when its value is ignored,
so later duplicates cannot replace it or bypass a valid default-src fallback.
Cover header/meta parsing, independent directives, reporting, Trusted Types
sinks and worker string/Wasm compilation. Keep source-token boundary checks
separate from invalid directive handling.
Serialize computed background from the shared retained style read, using the image list to coordinate layers, repeating or truncating other component lists, and emitting color only in the final layer. Include computed initial components instead of using specified-value shorthand elision.
When Stylo cannot serialize a computed shorthand, reify the shared CSSOM result as one property-associated opaque CSSStyleValue. Preserve native realm allocation, snapshot immutability and longhand Typed OM types. Cover multiple layers, currentcolor, list coordination, private native writes and cross-realm reads.
Parse VP9 and AV1 color descriptions in the native MIME module, including BT.709 defaults and unspecified CICP fields. Report unsupported for mismatched or malformed descriptions while preserving derived dictionary conversion and snapshots.
Cover codec grammar and 1,144 query combinations, including matching configurations that must retain their existing support.
Freezing an ICE or data-channel event must not freeze its mutable Event state. Move all three RTC event constructors onto the shared private backing and wrapper path, preventing initEvent from trying to redefine frozen public properties.
Derive argument arity, inherited EventInit conversion and interface validation, then initialize payload slots from the same dictionary schema. Preserve native payload identity, nullable URLs and original exceptions. Cover frozen dispatch and registered native Proxy payloads without admitting author or revoked Proxies.
Reuse the existing image decode request and microtask pipeline for SVG images.
Validate HTML and SVG receivers through generated native brands and convert
binding failures to rejected Promises in the callee realm. Keep successful
decode Promises and EncodingError values in the backing receiver relevant realm,
including registered native proxies and images adopted across documents.
Cover href precedence and cancellation, cross-realm network settlement, forged
and proxy receivers, intrinsic constructor replacement, and native proxy realms.
Exercise the existing owner/relevant-realm assertions using real adoption.
Convert option members in WebIDL order, including root brand validation and
the threshold double-or-sequence union. Propagate conversion failures before
constructor margin/range validation and retain duplicate thresholds when sorting.
Cover iterable discrimination, getter order, exception precedence, and later
getter mutations; update the existing duplicate-threshold expectations.
Send Browser.close through the ordinary command channel and Router session
validation before handling it in the protocol actor. Route its response through
the existing pending-command table and confirm writer flush before submitting
InstanceCommand::Shutdown, without scheduling renderer work.
Remove the socket shortcut, CdpFrontendSessionLookup, and shared Arc/Weak routing
state. Inject one instance control handle into both server admission and owner
lifecycle, keeping native shutdown on the same state.
Cover response ID/session restoration and route consumption; retain failed
flush, invalid/foreign session, pending-promise, and instance cleanup coverage.
Expose protocol-independent InstanceCommand and BrowserInstanceControl with a
native serve_with_control entry. Keep shutdown coordination in the server and
CDP session validation and response flush in a dedicated adapter, bypassing
renderer work without creating another actor or shutdown state.
Parse each CDP envelope once and check live frontend-owned session routes
through a weak registry view. Match Chromium Browser.close on browser, page,
tab, and worker sessions; ignore params and reject null or foreign session IDs.
Update optional-session test requests to omit absent routes.
Add native and pending-promise lifecycle regressions and cross-engine smoke
coverage for acknowledgment ordering, natural process exit, and isolation.
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