firebase.json

{
  "hosting": [
    {
      "target": "app",
      "public": "dist/",
      "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
      "appAssociation": "AUTO",
      "cleanUrls": true,
      "rewrites": [
        {
          "source": "/**/!(*.@(js|ts|html|css|json|svg|png|jpg|jpeg|webp|gif|ico|woff2|woff|ttf|webmanifest))",
          "destination": "/index.html"
        }
      ],
      "headers": [
        {
          "source": "/**(*.@(css|js|json|html|svg))",
          "headers": [
            {
              "key": "X-Content-Type-Options",
              "value": "nosniff"
            }
          ]
        },
        {
          "source": "/**",
          "headers": [
            {
              "key": "X-XSS-Protection",
              "value": "1"
            },
            {
              "key": "X-Frame-Options",
              "value": "DENY"
            },
            {
              "key": "Content-Security-Policy",
              "value": "upgrade-insecure-requests; default-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: *; media-src 'self'; script-src 'self' 'unsafe-inline' https://*.googleapis.com https://apis.google.com; child-src 'self' blob:; connect-src 'self' https://*.googleapis.com https://fonts.gstatic.com https://apis.google.com;"
            }
          ]
        },
        {
          "source": "/assets/**",
          "headers": [
            {
              "key": "Cache-Control",
              "value": "public, max-age=604800, s-maxage=1209600"
            }
          ]
        },
        {
          "source": "/*.@(webmanifest|ico)",
          "headers": [
            {
              "key": "Cache-Control",
              "value": "public, max-age=604800, s-maxage=1209600"
            }
          ]
        },
        {
          "source": "/*.@(js|css)",
          "headers": [
            {
              "key": "Cache-Control",
              "value": "public, max-age=31536000"
            }
          ]
        }
      ],
      "trailingSlash": false
    }
  ],
  "emulators": {
    "hosting": {
      "port": 4200
    },
    "ui": {
      "enabled": true,
      "port": 4202
    }
  }
}