Ignore few static files in express static

var mime = require('mime-types')
var serveStatic = require('serve-static')

app.use(serveStatic(__dirname + '/public', {
  maxAge: '1y',
  setHeaders: function (res, path) {
    if (mime.lookup(path) === 'text/html') {
      res.setHeader('Cache-Control', 'public, max-age=0')
    }
  }
}))

app.use(function (req, res, next) {
  console.log(req.url);
  if (req.url !== '/app/index.html') {
    res.header('Cache-Control', 'public, max-age=600s')
  }
  next();
});
app.use('/app', express.static(path.resolve(__dirname, './app')));

References
https://stackoverflow.com/questions/45076710/can-i-ignore-few-static-files-in-express-static
https://github.com/expressjs/serve-static/issues/32