_app.js

const AppComponent = ({ Component, pageProps }) => {
  return <div>
    <Component {...pageProps} />
  </div>
};

AppComponent.getInitialProps = async appContext => {
  let pageProps = {};
  if (appContext.Component.getInitialProps) {
    pageProps = await appContext.Component.getInitialProps(appContext.ctx);
  };

  return {
    pageProps
  };
};

export default AppComponent;