freeCodeCamp/common/app/components/NotFound/index.jsx

import React, { PropTypes } from 'react';

const win = typeof window !== 'undefined' ? window : {};

function goToServer(path) {
  win.location = '/' + path;
}

export default class extends React.Component {
  static displayName = 'NotFound';

  static propTypes = {
    params: PropTypes.object
  };

  componentWillMount() {
    goToServer(this.props.params.splat);
  }

  componentDidMount() {
  }

  render() {
    return <span></span>;
  }
}