text: import React from 'react';
  import NotFound from 'components/common/NotFound';
  import { Helmet } from 'react-helmet';
  
  const NotFoundPage = ({history, staticContext}) => {
    // staticContext 는 서버쪽에서만 존재합니다.
    if (staticContext) {
      staticContext.isNotFound = true;
    }
    return (
        <div>
          <Helmet>
              <title>Not Found</title>
          </Helmet>
          <NotFound onGoBack={history.goBack}/>
        </div>
    );
  };
  
  export default NotFoundPage;