T-DEBT-FLAT-IFC-FALLBACK-STRUT-NATURAL-HEIGHT
The root strut in the flat IFC fallback still uses natural font height for line-height:normal, differing from text-item normal line-height
Verification scope
docs/known_issues.md:176
Report an issue with this entry →T-DEBT-FLEX-AUTO-MIN-WHOLE-PIXEL-CEIL
Flex items' automatic minimum size (min-width:auto) is rounded up to a whole pixel
Verification scope
docs/known_issues.md:304
Report an issue with this entry →T-DEBT-FLEX-COLUMN-REPLACED-CROSS-STRETCH-RATIO
Column flex layout does not transfer the natural ratio back to a replaced image height after cross-axis stretching
Verification scope
docs/known_issues.md:62
Report an issue with this entry →T-DEBT-FLEX-ITEM-GRID-BRANCH-CEIL-AFTER-GRID-FRACTIONAL-TRACKS
The Flex grid branch still rounds the root width up after Grid has sized fractional auto tracks
Verification scope
docs/known_issues.md:61
Report an issue with this entry →T-DEBT-FLEX-ITEM-GRID-FR-FIT-CONTENT-STILL-BY-TRIAL
When a flex item is or contains a grid with fit-content() columns, or explicit columns plus implicit fr columns, its flex base still uses geometry from an infinite-width trial layout
Verification scope
docs/known_issues.md:60
Report an issue with this entry →T-DEBT-FONT-FALLBACK-COVERAGE-AND-GENERIC-SANS
Per-glyph coverage after missing webfont glyphs and the Windows generic sans fallback order
Verification scope
docs/known_issues.md:262
Report an issue with this entry →T-DEBT-FRAME-RADIUS-NONWINDOWS
Complete native outline clipping, hit testing, shadows and DPI behavior for top-level frameRadius windows on Linux/macOS
Verification scope
docs/known_issues.md:388
Report an issue with this entry →T-DEBT-FULL-SUITE-LOAD-FLAKY-TESTS
Individual EXEs can fail transiently in the full ordinary test suite when other builds run on the same machine; failure state is not preserved for diagnosis
Verification scope
docs/known_issues.md:293
Report an issue with this entry →T-DEBT-GENERATED-FIRST-LETTER-PSEUDO-DECORATION
Generated-content ::first-letter does not receive decoration lines declared on ::before itself
Verification scope
docs/known_issues.md:367
Report an issue with this entry →T-DEBT-GENERIC-FALLBACK-CHROME-PARITY
Generic-family fallback glyphs still differ from Chrome in three cases
Verification scope
docs/known_issues.md:265
Report an issue with this entry →T-DEBT-GEOMETRIC-LIST-MARKER-INLINE-ADVANCE-PARITY
The 1.36em advance estimate for default geometric list markers differs from the used marker box in Chrome
Verification scope
docs/known_issues.md:217
Report an issue with this entry →T-DEBT-GORUST-CANONICAL-MANIFEST-UNGATED
Go/Rust canonical-example mirrors and manifests have no validation gate
Verification scope
docs/known_issues.md:288
Report an issue with this entry →T-DEBT-GRID-ANONYMOUS-PRESERVED-EDGE-SHAPING-PARITY
Difference in advance at preserved-space break opportunities and line-start glyph-shaping boundaries in Grid
Verification scope
docs/known_issues.md:308
Report an issue with this entry →T-DEBT-GRID-FIXED-REPEAT-COMPUTED-SERIALIZATION
Fixed repeat is expanded in computed styles, so serialization of computed track values loses repeat notation
Verification scope
docs/known_issues.md:75
Report an issue with this entry →T-DEBT-GRID-FIXED-ROW-PERCENT-INTRINSIC-BOUNDARIES
Horizontal percentage/ratio queries for fixed rows still lack stretch wrappers, fixed minmax, and a maximum used-width reference
Verification scope
docs/known_issues.md:79
Report an issue with this entry →T-DEBT-GRID-OWN-PERCENT-BOX-MODEL-KNOWN-ADJACENT-GEOMETRY
Exact snapshots of adjacent C8 guardrail geometry unrelated to the element's own percentage basis
Verification scope
docs/known_issues.md:306
Report an issue with this entry →T-DEBT-GRID-PARTIAL-FR-AUTO-STRETCH-KNOWN-ADJACENT-GEOMETRY
Temporary exact snapshots of adjacent A176 guardrail geometry must be removed as each root cause is resolved
Verification scope
docs/known_issues.md:307
Report an issue with this entry →T-DEBT-GRID-PRESERVED-TAB-INTRINSIC-ADVANCE-PARITY
Grid intrinsic widths and approximate final layout of character sequences with preserved tabs still differ from actual font tab stops
Verification scope
docs/known_issues.md:82
Report an issue with this entry →T-DEBT-GRID-TEMPLATE-CSSOM-USED-TRACK-SIZES
getComputedStyle for template tracks still returns computed values when a Grid box exists rather than used track lengths
Verification scope
docs/known_issues.md:74
Report an issue with this entry →T-DEBT-HIT-TEST-BROWSER-SUBPIXEL-CONTRACT
KUI exact-point hit testing differs from browser hit regions at subpixel edges
Verification scope
docs/known_issues.md:114
Report an issue with this entry →T-DEBT-ICU-DATA-MACOS-LINUX-VALIDATION
Build and validate reduced ICU Data on macOS/Linux, then enable filtering only after establishing unit/WPT/pixel baselines for each platform
Verification scope
docs/known_issues.md:387
Report an issue with this entry →T-DEBT-IDLE-WAKE-NONWINDOWS-NEVER-REARMS
Linux/macOS idle-wake timers never change their interval after being scheduled
Verification scope
docs/known_issues.md:394
Report an issue with this entry →T-DEBT-IFC-BASELINE-SOLVER
Consolidate the IFC baseline solver
Verification scope
docs/known_issues.md:148
Report an issue with this entry →T-DEBT-IFC-BOUNDARY-MIDWORD-RESIDUAL-SHAPES
Long words still break in the middle for several shapes in paragraphs with break boundaries, preserving the pre-fix behavior
Verification scope
docs/known_issues.md:180
Report an issue with this entry →T-DEBT-IFC-EXPORTED-BASELINE-BELOW-STRUT
The first/last baseline exported by an IFC can fall below the root strut baseline for mixed primary/fallback fonts and author-specified line heights
Verification scope
docs/known_issues.md:165
Report an issue with this entry →T-DEBT-IMG-EMPTY-SOURCE-BROWSERCOMPAT-FALLBACK-BAND
BrowserCompat applies the 20px broken-image fallback height to images with no src
Verification scope
docs/known_issues.md:142
Report an issue with this entry →T-DEBT-INLINE-ATOMIC-JUSTIFY-FIXTURE-RESOURCE-SETTLEMENT
Investigate the full set of inline atomic justify pixel failures and final resource states
Verification scope
docs/known_issues.md:244
Report an issue with this entry →T-DEBT-INLINE-BOX-DECORATION-BREAK-CLONE
box-decoration-break:clone affects painting of multiline inlines, but layout does not add padding and borders to both ends of each fragment
Verification scope
docs/known_issues.md:332
Report an issue with this entry →T-DEBT-INLINE-EFFECT-OWNER-OVERFLOW-RESET-INTERACTION
For an opacity inline effect owner wrapping only a float, visitInlineCBs clears the float overflow recorded by layoutBlockChildren back to zero during the same pass
Verification scope
docs/known_issues.md:320
Report an issue with this entry →T-DEBT-INLINE-LIST-ANON-IFC-MARKER-INTEGRATION
Unify anonymous parent IFCs, IB-split start/end edges, and marker ownership for ordinary inline list-items
Verification scope
docs/known_issues.md:214
Report an issue with this entry →T-DEBT-INLINE-LISTITEM-FRAGMENT-MARKER
Roles, markers, and block-in-inline split geometry for ordinary display:inline list-item
Verification scope
docs/known_issues.md:213
Report an issue with this entry →T-DEBT-INLINE-ROOT-RUN-COLLECTOR-PARITY
InlineLayout collects runs differently for standalone inline roots and whole paragraphs: <br> is swallowed (the nested-relative-positioning case disappeared with B24)
Verification scope
docs/known_issues.md:157
Report an issue with this entry →T-DEBT-INLINE-RTL-LIST-ITEM-GEOMETRY
Complete inline geometry for inline list-item and RTL inside markers
Verification scope
docs/known_issues.md:210
Report an issue with this entry →T-DEBT-INSIDE-MARKER-TEXT-UNBREAKABLE
Inside text markers do not wrap when wider than the line and do not stretch during justification
Verification scope
docs/known_issues.md:343
Report an issue with this entry →T-DEBT-INSIDE-TEXT-MARKER-DECORATION
Inside text list markers do not paint decoration lines propagated from li
Verification scope
docs/known_issues.md:342
Report an issue with this entry →T-DEBT-INTRINSIC-ARABIC-WORD-CEIL-PLUS-ONE
IntrinsicSizer rounds the max-content width of joined Arabic words up and adds 1px, making the box about 1-2px wider than Chrome
Verification scope
docs/known_issues.md:104
Report an issue with this entry →T-DEBT-INTRINSIC-SIZER-CROSS-NODE-SHAPING
IntrinsicSizer shapes and sums inline max-content one text node at a time, missing shaping interactions across nodes
Verification scope
docs/known_issues.md:112
Report an issue with this entry →T-DEBT-INTRINSIC-SIZER-KEYWORD-CONTRIBUTION-PARITY
IntrinsicSizer does not cover several shapes handled by the legacy keyword evaluator, preventing a full switch for block keyword widths; row flex item keyword widths in A59 already use it
Verification scope
docs/known_issues.md:106
Report an issue with this entry →T-DEBT-INTRINSIC-STANDALONE-PRESERVED-TEXT-EDGES-GRID-ONLY
Edge measurement for standalone lines of whitespace-preserving text is currently unified only under a Grid ancestor
Verification scope
docs/known_issues.md:102
Report an issue with this entry →T-DEBT-INTRINSIC-TRAILING-LETTER-SPACING
Intrinsic width omits letter spacing after the final character
Verification scope
docs/known_issues.md:317
Report an issue with this entry →T-DEBT-LAYOUT-DEPTH-GUARD-THRESHOLD-STALE
Calibrate the layout depth guard threshold
Verification scope
docs/known_issues.md:321
Report an issue with this entry →T-DEBT-LEGACY-CLAMP-NEXT-LINE-IN-PADDING
Chrome legacy -webkit-line-clamp clips height and exposes the next line top in bottom padding; KUI does not paint truncated lines
Verification scope
docs/known_issues.md:341
Report an issue with this entry →T-DEBT-LETTER-SPACING-PINNED-KNOWN-DEVIATIONS
test_letter_spacing_per_line_start_offset pins three known Chrome differences in dev cases or skips
Verification scope
docs/known_issues.md:160
Report an issue with this entry →T-DEBT-LINE-CLAMP-CROSSING-INLINE-DISCARDED-FRAGMENTS
An inline crossing the line-clamp cutoff has no getClientRects() fragments for its discarded lines
Verification scope
docs/known_issues.md:206
Report an issue with this entry →T-DEBT-LINE-CLAMP-LEGACY-SCROLL-EXTENT-CSSOM-ONLY
For a legacy line-clamp host, only CSSOM scrollHeight includes discarded lines; scroll range, scrollWidth, and DevTools scroll information do not
Verification scope
docs/known_issues.md:207
Report an issue with this entry →T-DEBT-LINE-CLAMP-MODERN-NATIVE-ELLIPSIS-SOFT-LINE-CUT
Modern line-clamp shapes using SkParagraph native ellipses, including more than three lines or non-start alignment, still have trailing hanging-whitespace offsets or retain the first few letters of an extra word; F-WPT-FIX-950 covers only start-aligned LTR soft-wrap fallback with two or three lines
Verification scope
docs/known_issues.md:204
Report an issue with this entry →T-DEBT-LINE-CLAMP-OVERFLOW-VISIBLE-DISCARDED-PAINT
With overflow:visible, legacy line-clamp paints some text outside its container differently from Chrome
Verification scope
docs/known_issues.md:201
Report an issue with this entry →T-DEBT-LINE-HEIGHT-NORMAL-CAP-TWICE-FONT-SIZE
The line-height:normal cap of twice the font size differs from Chrome for fonts with unusually tall content bands, such as Javanese Text
Verification scope
docs/known_issues.md:335
Report an issue with this entry →T-DEBT-LINUX-CANVAS-TEXT-MEASURE-ZERO
Linux Canvas text measurement returns zero
Verification scope
docs/known_issues.md:326
Report an issue with this entry →T-DEBT-LINUX-POPUP-DISMISS-ON-WINDOW-DEACTIVATE-UNVERIFIED
It is unverified whether Linux select dropdowns and context menus close when the main window loses focus through Alt+Tab or clicking another application
Verification scope
docs/known_issues.md:380
Report an issue with this entry →T-DEBT-LINUX-POPUP-NO-COMPOSITOR
Linux popup behavior without a compositor
Verification scope
docs/known_issues.md:379
Report an issue with this entry →T-DEBT-LINUX-TEXT-RASTER-PROFILE
Align Linux text rasterization settings with browsers and the desktop environment
Verification scope
docs/known_issues.md:324
Report an issue with this entry →T-DEBT-LINUX-TRAYICON-NOT-IMPLEMENTED
T-DEBT-LIST-MARKER-DEVICE-SPACE-RASTER
Align device-pixel snapping and antialiasing of curved markers under fractional transforms and zoom
Verification scope
docs/known_issues.md:247
Report an issue with this entry →T-DEBT-LONG-TEST-EXE-NEAR-RUNNER-TIMEOUT
Some test EXEs approach the run_tests.py per-EXE timeout of 300 s even in isolation and time out under load
Verification scope
docs/known_issues.md:294
Report an issue with this entry →T-DEBT-MACOS-TEXT-RASTER-PROFILE
Align macOS text rasterization settings with Chromium/CoreText behavior
Verification scope
docs/known_issues.md:325
Report an issue with this entry →T-DEBT-MACOS-TRAY-BALLOON-DEPRECATED-API
Replace the deprecated macOS tray balloon API
Verification scope
docs/known_issues.md:384
Report an issue with this entry →T-DEBT-MRG-DEVTOOLS-OUTERHTML-CONTRACT
The DOM.setOuterHTML name does not match its actual innerHTML operation
Verification scope
docs/known_issues.md:296
Report an issue with this entry →T-DEBT-MRG-DEVTOOLS-REMAINING-PARAM-SCHEMA
Remaining DevTools domains lack a unified typed parameter contract
Verification scope
docs/known_issues.md:295
Report an issue with this entry →T-DEBT-MRG-FORM-DOCUMENT-INVALIDATION-COST
The document-wide style invalidation cost of limited form constraints has not been quantified
Verification scope
docs/known_issues.md:353
Report an issue with this entry →T-DEBT-MRG-FORM-PATTERN-COST
Explicit form pattern validation lacks a provable complexity bound
Verification scope
docs/known_issues.md:228
Report an issue with this entry →T-DEBT-MRG48-CROSS-ENGINE-BASELINE-METRICS
A small baseline difference remains between the table bottom and Chrome
Verification scope
docs/known_issues.md:316
Report an issue with this entry →T-DEBT-MULTICOL-PROJECTED-DAMAGE-CULL
Restore projected damage clipping and caching during multicolumn fragment replay
Verification scope
docs/known_issues.md:246
Report an issue with this entry →T-DEBT-MULTILINE-INLINE-OUTLINE-RADIUS
The merged outline of a multiline inline element has no rounded corners
Verification scope
docs/known_issues.md:331
Report an issue with this entry →T-DEBT-NEGATIVE-LAYER-INLINE-ROOT-OWNED-EXTRAS
Remaining negative-z-index inline painting after glyphs moved into the negative layer: several decorations are still painted by the IFC root in the root's layer
Verification scope
docs/known_issues.md:252
Report an issue with this entry →T-DEBT-NO-BACKEND-ANON-IFC-LINE-HEIGHT
Without a backend or SkParagraph, legacy anonymous-block IFC line-height differs from direct text boxes
Verification scope
docs/known_issues.md:167
Report an issue with this entry →T-DEBT-OVERFLOW-WRAP-DEFER-NON-SPACE-OPPORTUNITY
overflow-wrap defers splitting a word to the next line only for authored spaces/tabs; it still splits on the current line after opportunities such as hyphens, slashes or ideographs, as does legacy segmented layout with floats/form controls
Verification scope
docs/known_issues.md:338
Report an issue with this entry →T-DEBT-PARITY-3D-TRANSFORM
CSS 3D transforms (rotateY, perspective, transform-style, and others) have no effect
Verification scope
docs/known_issues.md:249
Report an issue with this entry →T-DEBT-PARITY-FIT-CONTENT-FUNCTION
The fit-content(<length>) function produces a different result from Chrome: Chrome 400, KUI 218
Verification scope
docs/known_issues.md:103
Report an issue with this entry →T-DEBT-PARITY-FONT-METRICS-BASELINE-PHASE
Inline baseline subpixel phase differs from Chrome by one pixel row in 60 of 240 shapes
Verification scope
docs/known_issues.md:170
Report an issue with this entry →T-DEBT-PARITY-GAP-PERCENT-INDEFINITE
gap:<percentage> resolves to zero in containers with an indefinite inline size
Verification scope
docs/known_issues.md:118
Report an issue with this entry →T-DEBT-PARITY-GRID-MAXCONTENT-INLINE-SIBLINGS
A grid with width:max-content takes the maximum of inline siblings in a cell as if they were blocks rather than measuring the whole IFC together
Verification scope
docs/known_issues.md:73
Report an issue with this entry →T-DEBT-PARITY-REMOTE-FONT-MODEL
Font loading is synchronous and local only: no remote @font-face src:url() download; unicode-range is parsed but not applied; font-display has no observable effect
Verification scope
docs/known_issues.md:263
Report an issue with this entry →T-DEBT-PARITY-SCROLLWIDTH-ELLIPSIS
scrollWidth of a nowrap box with text-overflow:ellipsis does not reflect its full untruncated width
Verification scope
docs/known_issues.md:187
Report an issue with this entry →T-DEBT-PARITY-TAB-SIZE
tab-size is not implemented (measured width: 72 versus 118 in Chrome)
Verification scope
docs/known_issues.md:151
Report an issue with this entry →T-DEBT-PARITY-TEXT-INDENT-NEGATIVE
Negative text-indent does not produce a hanging indent
Verification scope
docs/known_issues.md:150
Report an issue with this entry →T-DEBT-PARITY-UAX14-HYPHEN-BREAK
Line breaking after hyphens may not follow UAX #14
Verification scope
docs/known_issues.md:152
Report an issue with this entry →T-DEBT-PDF-SPECIALIZED-FRAGMENTATION
Complete paged multicol and specialized pagination semantics for Flex, Grid, and Table
Verification scope
docs/known_issues.md:115
Report an issue with this entry →T-DEBT-PERF-CORPUS-ASYNC-IMAGE-LAYOUT-HISTORY
The asynchronous image input history of performance-equivalence fixtures is not yet controlled
Verification scope
docs/known_issues.md:243
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