import React from 'react' import PropTypes from 'prop-types' import Document, { Head, Main, NextScript } from 'next/document' export default class MyDocument extends Document { static getInitialProps ({ renderPage }) { const {html, head, errorHtml, chunks} = renderPage() return { html, head, errorHtml, chunks } } static contextTypes = { theme: PropTypes.object }; render () { return (