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fix(header): drop no-op backdrop-blur that flickered content on scroll #1499

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Merged
michaelassraf merged 2 commits into from
Jul 19, 2026
+12 −1
Merged

fix(header): drop no-op backdrop-blur that flickered content on scroll #1499

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fix(header): drop no-op backdrop-blur that flickered content on scrol…
michaelassraf Jul 19, 2026
dae27d9
Merge branch 'main' into claude/pricing-scroll-flicker-94bb6e
michaelassraf Jul 19, 2026
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13 changes: 12 additions & 1 deletion openframe-frontend-core/src/components/navigation/header.tsx
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Expand Up @@ -277,7 +277,18 @@ export function Header({ config, platform }: HeaderProps) {
// 72px = unified-header spec height (Figma 4033-90260); the right
// cluster self-stretches so the Mingo launcher can sit flush.
"w-full h-[72px] flex items-center justify-between",
"border-b border-ods-border backdrop-blur-sm",
// NOTE: no `backdrop-blur` here. Every platform ships an OPAQUE
// header background (`backgroundColor` below resolves to an opaque
// ODS token — bg-ods-bg / bg-ods-card), so a backdrop-filter would
// blur a backdrop that is then fully painted over: zero visual
// effect, but it still forces the browser to keep a backdrop-filter
// surface and re-rasterize the strip behind this sticky bar every
// scroll frame. That surface desyncs a frame against the scrolling
// content and makes content flicker as it passes under the header
// (most visible on large high-contrast headings, e.g. /pricing).
// If a consumer ever wants a translucent "glass" header, add the
// blur together with a translucent `backgroundColor` deliberately.
"border-b border-ods-border",
"pl-6",
!config.mingo?.enabled && "pr-6",
// Background color (configurable via backgroundColor prop)
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