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Prevent Flash of Unstyled Content in Chrome
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| // Next.js' `_app.js` file | |
| import Head from 'next/head'; | |
| import { useEffect, useState } from 'react'; | |
| import '../styles/main.scss'; | |
| function useIsMounted() { | |
| const [mounted, setMounted] = useState(false); | |
| useEffect(() => { | |
| setMounted(true); | |
| }, []); | |
| return mounted; | |
| } | |
| function PreventFlashOfUnstyledContent() { | |
| const mounted = useIsMounted(); | |
| if (mounted) { | |
| return null; | |
| } | |
| return ( | |
| <Head> | |
| <style | |
| id="preventFlashOfUnstyledContent" | |
| dangerouslySetInnerHTML={{ | |
| __html: `*, *::before, *::after { transition: none !important; }`, | |
| }} | |
| /> | |
| </Head> | |
| ); | |
| } | |
| const App = ({ Component, pageProps }) => { | |
| return ( | |
| <> | |
| <PreventFlashOfUnstyledContent /> | |
| <Component {...pageProps} /> | |
| </> | |
| ); | |
| }; | |
| export default App; |
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