[
  {
    "AllowedOrigins": [
      "http://localhost:3000",
      "https://YOUR-DOMAIN.vercel.app",
      "https://files.your-domain.com"
    ],
    "AllowedMethods": ["GET", "PUT", "HEAD"],
    "AllowedHeaders": ["Content-Type", "Content-Length", "ETag", "x-amz-*"],
    "ExposeHeaders": ["ETag"],
    "MaxAgeSeconds": 3600
  }
]