{
  "error": {
    "code": 403,
    "message": "Requests from referer \u003cempty\u003e are blocked.",
    "status": "PERMISSION_DENIED",
    "details": [
      {
        "@type": "type.googleapis.com/google.rpc.ErrorInfo",
        "reason": "API_KEY_HTTP_REFERRER_BLOCKED",
        "domain": "googleapis.com",
        "metadata": {
          "service": "routes.googleapis.com",
          "httpReferrer": "\u003cempty\u003e",
          "consumer": "projects/813640382716"
        }
      },
      {
        "@type": "type.googleapis.com/google.rpc.LocalizedMessage",
        "locale": "en-US",
        "message": "Requests from referer \u003cempty\u003e are blocked."
      }
    ]
  }
}