vercel.json

{
  "headers": [
    {
      "source": "/(.*)",
      "headers" : [
        {
          "key" : "X-Content-Type-Options",
          "value" : "nosniff"
        }, 
        {
          "key" : "X-Frame-Options",
          "value" : "SAMEORIGIN"
        },
        {
          "key" : "X-XSS-Protection",
          "value" : "1; mode=block"
        },
        {
          "key" : "Content-Security-Policy",
          "value" : "upgrade-insecure-requests;"
        },
        {
          "key" : "Referrer-Policy",
          "value" : "strict-origin-when-cross-origin"
        },
        {
          "key" : "Permissions-Policy",
          "value" : "geolocation=()"
        }       
      ]
    },
    {
      "source": "/:path*",
      "has": [
        {
          "type": "query",
          "key": "authorized"
        }
      ],
      "headers": [
        {
          "key": "x-authorized",
          "value": "true"
        }
      ]
    }
  ]
}