ladybird/Tests/LibWeb/Layout/input/grid-min-height-fit-content.html at f05bc7c0cd31d8a119bef052d531ac7c68e2e039 - ladybird - lab48

eliott/ladybird

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Aliaksandr Kalenik bdf2dbff98 LibWeb: Move min-height handling for independent FCs to parent context

Previously, GridFormattingContext handled its own min-height constraints
internally, which caused infinite recursion when min-height was an
intrinsic sizing keyword (e.g., min-height: max-content).

This change moves the responsibility to the parent formatting context
(BFC). When any box establishing an independent formatting context has
auto height but non-auto min-height:
1. BFC measures content height using a throwaway LayoutState
2. If content height < min-height, BFC passes min-height as definite
   available height to the child formatting context
3. Child FC runs once with correct constraints, unaware of min-height

Fixes https://github.com/LadybirdBrowser/ladybird/issues/4261 which
is corresponding to stack overflow on https://claude.ai/

2026-01-05 16:09:51 +01:00

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HTML

Raw Blame History

 <!DOCTYPE html>
 <style>
     div { display: grid; min-height: fit-content; }
 </style>
 <div></div>