message: Fall back to sleep 10sec due to incompatibility on Travis
diff: -#!/bin/sh
  -if curl http://localhost:3000 --retry 4 --retry-connrefused | grep -q '<app-root></app-root>'; then
  +sleep 10
  +if curl http://localhost:3000 | grep -q '<app-root></app-root>'; then
  echo -e "\e[32mSmoke test passed!\e[0m"
  exit 0
  else
  