Redirect to external page on Next.js

hoge.tsx

import { DocumentContext } from "next/document"
import React from "react"

const Page = () => {
    return null
}

const Location = "hoge"

export const getServerSideProps = async (ctx: DocumentContext) => {
    if (ctx.res) {
        ctx.res.writeHead(301, { Location,  "Content-Type": "hoge" })
        ctx.res.end()
    }
    return { props: {} }
}

export default Page