simple nginx/unit config to serve SPA

config.spa.unit.json

{
  "listeners": {
    "*:8080": {
      "pass": "routes/main"
    }
  },
  "routes": {
    "main": [
      {
        "action": {
          "share": ["/www$uri", "/www/$uri"],
          "fallback": {
            "share": "/www/index.html"
          }
        }
      }
    ]
  }
}