firebase.json

{
  "hosting": {
    "public": "out",
    "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
    "headers": [
      {
        "source": "**/*.@(js|css)",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "public, max-age=31536000"
          }
        ]
      },
      {
        "source": "**/*.@(jpg|jpeg|gif|png|avif|webp|svg|woff2)",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "public, max-age=31536000, immutable"
          }
        ]
      },
      {
        "source": "**/*.@(eot|otf|ttf|ttc|woff|font.css)",
        "headers": [
          {
            "key": "Access-Control-Allow-Origin",
            "value": "*"
          }
        ]
      },
      {
        "source": "**/worker.js",
        "headers": [
          {
            "key": "Content-Type",
            "value": "application/javascript"
          }
        ]
      },
      {
        "source": "**/conversion.js",
        "headers": [
          {
            "key": "Content-Type",
            "value": "application/javascript"
          }
        ]
      }
    ],
    "rewrites": [
      {
        "source": "**",
        "destination": "/index.html"
      }
    ],
    "redirects": [
      {
        "regex": "/blog/tutorials/use-avif-in-(?P<post>.+)",
        "destination": "/blog/tutorials/:post",
        "type": "301"
      }
    ]
  }
}