A grafted frame's position:fixed children re-resolved against the MAIN
page viewport and escaped the frame box's overflow clip (fixed ignores
overflow ancestors) - a full-viewport backdrop inside an embedded iframe
could paint across the entire page. Grafted subtrees now demote
fixed->absolute and sticky->relative, and a static graft host is promoted
to relative so demoted absolutes anchor and clip inside the frame box.
472 tests pass (4 new), typecheck clean.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Overlay detection resolves effective z-index through stacking ancestors,
treats a zero-size max-z wrapper plus its full-viewport descendant as one
removable unit, pierces open shadow roots, and relaxes the z floor when
the page is scroll-locked; a lock persisting after dismissal reports
blocking even with no detected overlay
- clickDismiss runs in every frame (close buttons live in cross-origin
popup iframes), matches decline/no-thanks/aria-label close affordances,
and re-runs before every snapshot AND screenshot to catch late-mounting
dialogs
- rootUnclamp triggers from IR content extent (a scroll-lock collapses
captured scrollHeight) and strips vendor-injected body position/overflow
locks when firing
- Pollution gate fails on the scroll-lock contradiction: scrollHeight
pinned to one viewport while IR content spans multiple
- Frame graft skips popup-creative vendor hosts; inline embedded signup
forms remain graftable (regression-tested)
322 tests pass (24 new), typecheck clean.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Round-3 fixes from gate validation + human visual review of fresh
cropin.com and ooni.com clones:
- app.ts: section data-var rename used an unanchored substring replace,
so Tile2_data matched inside MediaTile2_data and emitted a corrupted
Mediatile2Data usage (ReferenceError at prerender). Word-boundary
regex; every map site now shares one derivation.
- graft.ts: about:blank iframes were blanket-skipped, missing the
Klaviyo newsletter form (mounted into a blank same-origin frame via
JS) — the audit's #1 complaint. Blank frames now graft; the
visibility gate still excludes 0-size tracking pixels.
- walker.ts: isVisible() now rejects boxes wholly outside the viewport
(off-left always; off-right only when the page isn't horizontally
scrollable; fixed boxes fully above/below), so a closed slide-in
drawer's contents no longer count as expected text (91.8% -> 93.4%).
- css.ts: four sizing-regime corrections — pin captured px for
circular shrink-0 slides (Splide slide chain collapsed 0x0);
flex-basis:100% for full-width shrink-0 slides; keep fixed-px grid
templates for scrolling track lists (repeat(N,1fr) squished a
50-track carousel); single full-bleed fixed track -> minmax(0,1fr);
keep authored heights whose in-flow children are fill children
(aspect-video heroes inflated 240 -> 720px); width:100% for
inset-spanned aspect boxes.
Gate scores: ooni home 88.7 -> 93.3 (responsive 32 fails -> pass),
pizza-ovens 90.8 -> 97.6 (perceptual 46.7% -> 17.2%).
107/107 compiler tests, all workspaces green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
