ngsw-config.json

{
    "index": "/index.html",
    "assetGroups": [
        {
            "name": "site",
            "installMode": "prefetch",
            "resources": {
                "files": ["/favicon.ico", "/index.html", "/*.bundle.css",
                    "/*.bundle.js",
                    "/*.chunk.js"],
                "urls": []
            }
        },
        {
            "name": "images",
            "installMode": "lazy",
            "resources": {
                "files": [
                    "/**/*.svg",
                    "/**/*.png",
                    "/**/*.gif",
                    "/**/*.js",
                    "/**/*.gif"
                ]
            }
        }
    ],
    "dataGroups": [
        {
            "name": "firebase-data",
            "urls": ["https://firebasestorage.googleapis.com/v0/b/firebase-devfestmn.appspot.com/o/*"],
            "cacheConfig": {
                "maxSize": 100,
                "maxAge": "7d",
                "strategy": "freshness"
            }

        }
    ]
}