manifest.webmanifest

{
    "name": "Storage Testing",
    "start_url": ".",
    "scope": ".",
    "display": "standalone",
    "icons": [
        {
            "src": "icon-48.png",
            "sizes": "48x48"
        },
        {
            "src": "icon-512.png",
            "sizes": "512x512"
        },
        {
            "src": "icon.svg"
        }
    ],
    "serviceworker": {
        "src": "./serviceworker.js",
        "update_via_cache": "none"
    }
}