{
  "hosting": {
    "public": "public",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**"
    ],
    "headers": [
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        "source": "firebase-messaging-sw.js",
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          {
            "key": "Cache-Control",
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          }
        ]
      },
      {
        "source": "index.html",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "no-cache, no-store, must-revalidate"
          }
        ]
      }
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}