message: send content type back for server, fix up some error logging
diff: @@ -82,11 +82,15 @@ if (cluster.isMaster) {
  const s = Date.now();
  renderer.renderToString(context, (err, html) => {
  if (err) {
  - console.error(err);
  + // console.error(err);
  + console.log('got error', req.url, err.message);
  res.status(500).end('Internal Server Error');
  return;
  }
  +
  + res.set('Content-Type', 'text/html');
  res.end(html);
  +
  const total = Date.now() - s;
  console.log(
  'total',
  