firebase.json

{
  "hosting": {
    "public": "dist",
    "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
    "headers": [
      {
        "source": "*.html",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "max-age=300"
          }
        ]
      },
      {
        "source": "**/*.@(jpg|jpeg|gif|png)",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "max-age=86400"
          }
        ]
      },
      {
        "source": "**",
        "headers": [
          {
            "key": "X-Content-Type-Options",
            "value": "nosniff"
          }
        ]
      },
      {
        "source": "**",
        "headers": [
          {
            "key": "X-Frame-Options",
            "value": "SAMEORIGIN"
          }
        ]
      },
      {
        "source": "**",
        "headers": [
          {
            "key": "X-XSS-Protection",
            "value": "1; mode=block"
          }
        ]
      },
      {
        "source": "**",
        "headers": [
          {
            "key": "Referrer-Policy",
            "value": "no-referrer-when-downgrade"
          }
        ]
      },
      {
        "source": "**",
        "headers": [
          {
            "key": "Permissions-Policy",
            "value": "accelerometer=(), ambient-light-sensor=(), autoplay=(), camera=(), encrypted-media=(), fullscreen=(self), geolocation=(self), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), speaker=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=()"
          }
        ]
      }
    ]
  },
  "rewrites": [
    {
      "source": "**",
      "destination": "/index.html"
    }
  ],
  "functions": {
    "source": "functions"
  },
  "emulators": {
    "ui": {
      "enabled": true
    },
    "auth": {
      "port": 9099
    },
    "firestore": {
      "port": 8080
    },
    "functions": {
      "port": 5001
    },
    "hosting": {
      "port": 5000
    }
  },
  "firestore": {}
}