{
  "name": "sockets3",
  "version": "1.0",
  "manifest_version": 2,
  "permissions": [
  ],
  "sockets": {
    "tcp": { "connect": ["a.com:80"] }
  },
  "app": {
    "background": {
      "scripts": ["no_file.js"]
    }
  }
}