Function defaultRoute

fastify.js:629–638

(req, res)

  // If the router does not match any route, every request will land here
  // req and res are Node.js core objects
  function defaultRoute (req, res) {
    if (req.headers['accept-version'] !== undefined) {
      // we remove the accept-version header for performance result
      // because we do not want to go through the constraint checking
      // the usage of symbol here to prevent any collision on custom header name
      req.headers[kRequestAcceptVersion] = req.headers['accept-version']
      req.headers['accept-version'] = undefined
    }
    fourOhFour.router.lookup(req, res)
  }

  function onBadUrl (path, req, res) {
    if (options.frameworkErrors) {