core/packages-private/sfc-playground/vercel.json

{
  "github": {
    "silent": true
  },
  "headers": [
    {
      "source": "/assets/(.*)",
      "headers": [
        {
          "key": "Cache-Control",
          "value": "max-age=31536000, immutable"
        }
      ]
    }
  ]
}