vercel.json

{
  "buildCommand": "npm run build",
  "outputDirectory": "dist",
  "headers": [
    {
      "source": "/api/(.*)",
      "headers": [
        { "key": "Access-Control-Allow-Credentials", "value": "true" },
        { "key": "Access-Control-Allow-Origin", "value": "*" },
        { "key": "Access-Control-Allow-Methods", "value": "GET,OPTIONS,PATCH,DELETE,POST,PUT" },
        { "key": "Access-Control-Allow-Headers", "value": "X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version" }
      ]
    },
    {
      "source": "/service-worker.js",
      "headers": [
        { "key": "Cache-Control", "value": "public, max-age=0, must-revalidate" }
      ]
    },
    {
      "source": "/manifest.json",
      "headers": [
        { "key": "Cache-Control", "value": "public, max-age=0, must-revalidate" }
      ]
    }
  ],
  "routes": [
    { "handle": "filesystem" },
    { "src": "/.*", "dest": "/index.html" }
  ]
}