message: allow vanilla localhost
diff: @@ -93,6 +93,7 @@ module.exports = function (environment) {
  fastboot: {
  hostWhitelist: hostWhitelistByTarget[process.env.SSR_WEB_ENVIRONMENT] ?? [
  '/.+.card.space.localhost:\\d+$/',
  + '/^localhost:\\d+$/',
  ],
  },
  cardSpaceHostnameSuffix:
  