Prior keyframes held descendants at transform: scale(0) during the
animation-delay phase (with fill-mode: both). Any DTStaggerContainer
child performing getBoundingClientRect()-based self-measurement on
mount — most notably R3F's <Canvas>, but also chart libs, video
players, and virtualized lists — read a near-zero rect at the
transform-multiplied size and never recovered, because transform
changes don't fire ResizeObserver when they end.
New keyframes:
0% opacity 0, transform none (during delay: invisible but
full layout size, no transform —
children measure correctly)
0.001% opacity 0, transform scale(0) (snap to scaled-down at start)
100% opacity 1, transform scale(1) (animate scale + fade in)
Behavior change for consumers: entrance gains a subtle fade-in
alongside the scale-in. Functionally equivalent for the existing
DTStaggerContainer use cases. Fixes the SuggestedPlacements 3D
viewer "blank teal block until scroll" bug on the Hydrogen
storefront product pages.
Bumps @dangerousthings/web to 0.5.0 (MINOR — visual behavior change).
To revert: git revert <this-commit>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
a459b643e8