firebase.json

{
  "hosting": {
    "public": "build",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**",
      "tmp",
      "lib",
      "resources",
      "result",
      "scripts",
      "book",
      "src"
    ],
    "rewrites": [
      {
        "source": "**",
        "destination": "/index.html"
      }
    ],
    "headers": [
      {
        "source": "**",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "max-age=0,public,must-revalidate"
          }
        ]
      },
      {
        "source": "**/*.@(js|jpg|svg|jpeg|png|eot|otf|ttf|ttc|woff|css|wasm|ico)",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "max-age=31536000,public,immutable"
          }
        ]
      }
    ]
  }
}