message: ignore file check for json files from public folder
diff: @@ -128,7 +128,9 @@ app.get('*', (req, res) => {
  const status = staticContext.status === '404' ? 404 : 200;
  let assets = ['/assets/main.js', '/assets/main.css'];
  if (!__DEV__) {
  + // $FlowFixMe: isn't an issue
  const webpackManifest = require('../public/webpack-assets.json');
  + // $FlowFixMe: isn't an issue
  const loadableManifest = require('../public/loadable-assets.json');
  const bundles = getBundles(loadableManifest, modules);
  assets = Object.keys(webpackManifest)
  