vercel.json

{
  "framework": "astro",
  "buildCommand": "npx astro build",
  "outputDirectory": "dist",
  "headers": [
    {
      "source": "/(.*)",
      "headers": [
        { "key": "X-Content-Type-Options", "value": "nosniff" },
        { "key": "Referrer-Policy", "value": "strict-origin-when-cross-origin" },
        { "key": "Permissions-Policy", "value": "camera=(), microphone=(), geolocation=(), usb=()" },
        { "key": "X-Frame-Options", "value": "SAMEORIGIN" },
        {
          "key": "Content-Security-Policy-Report-Only",
          "value": "default-src 'self'; script-src 'self' 'unsafe-eval' https://unpkg.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: blob:; connect-src 'self' https://formspree.io https://unpkg.com; media-src 'self' blob:; worker-src 'self' blob:; frame-ancestors 'self'"
        }
      ]
    }
  ]
}