firebase-spa-routing.js

{
  "hosting": {
    "public": "public",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**"
    ],
    "rewrites": [{
      "source": "**",
      "destination": "/index.html"
    }],
    "headers": [{
      "source": "/service-worker.js",
      "headers": [{
        "key": "Cache-Control",
        "value": "no-cache"
      }]
    }]
  }
}