Missing data-scroll-behavior Attribute for Smooth Scroll
Why This Warning Occurred
Your application has smooth scrolling enabled via CSS (scroll-behavior: smooth), but you haven't added the data-scroll-behavior="smooth" attribute to your <html> element.
Next.js automatically attempts to detect the smooth scrolling configuration to ensure that navigating back/forward through the router doesn't also trigger the smooth scrolling behavior, as this is often not desired.
Possible Ways to Fix It
Add data-scroll-behavior="smooth" to your <html> element if you want to disable smooth scrolling when routing via Next.js.
export default function RootLayout({
children,
}: {
children: React.ReactNode
}) {
return (
<html lang="en" data-scroll-behavior="smooth">
<body>{children}</body>
</html>
)
}Why This Optimization Matters
Next.js will only attempt to modify the scroll-behavior style on the <html> element when the data attribute is present to ensure smooth scrolling isn't triggered. This avoids unnecessary style recalculation unless explicitly opted into.
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