import Document , { Html , Head , Main , NextScript } from "next/document" ; class MyDocument extends Document { static async getInitialProps ( ctx ) { const initialProps = await Document . getInitialProps ( ctx ) ; return { ... initialProps } ; } render ( ) { return ( < Html lang = "id" > < Head /> < body > < Main /> < NextScript / > < /body> < /Html>); } } export default MyDocument ;