firebase.json

{
  "database": {
    "rules": "database.rules.json"
  },
  "hosting": {
    "public": "build/bundled",
    "rewrites": [
      {
        "source": "**",
        "destination": "/index.html"
      }
    ],
    "headers": [
      {
        "source": "**/*.@(eot|otf|ttf|ttc|woff|font.css)",
        "headers": [
          {
            "key": "Access-Control-Allow-Origin",
            "value": "*"
          }
        ]
      },
      {
        "source": "**/*.@(jpg|jpeg|gif|png)",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "public, max-age=7200"
          }
        ]
      },
      {
        "source": "src/**",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "public, max-age=31536000"
          }
        ]
      },
      {
        "source": "index.*.html",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "public, max-age=31536000"
          }
        ]
      },
      {
        "source": "service-worker.js",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "no-cache, no-store, max-age=0, must-revalidate"
          }
        ]
      },
      {
        "source": "http-cache-config.js",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "no-cache, no-store, max-age=0, must-revalidate"
          }
        ]
      },
      {
        "source": "http-cache-webcomponents-lite/webcomponents-lite.js",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "no-cache, no-store, max-age=0, must-revalidate"
          }
        ]
      }
    ]
  }
}