manifest.json

{
    "name": "PeerWebSite",
    "short_name": "PWS",
    "theme_color": "#ffffff",
    "background_color": "#ffffff",
    "display": "minimal-ui",
    "scope": "./",
    "start_url": "./",
    "icons": [
        {
            "src": "./img/android-icon-36x36.png",
            "sizes": "36x36",
            "type": "image\/png",
            "density": "0.75"
        },
        {
            "src": "./img/android-icon-48x48.png",
            "sizes": "48x48",
            "type": "image\/png",
            "density": "1.0"
        },
        {
            "src": "./img/android-icon-72x72.png",
            "sizes": "72x72",
            "type": "image\/png",
            "density": "1.5"
        },
        {
            "src": "./img/android-icon-96x96.png",
            "sizes": "96x96",
            "type": "image\/png",
            "density": "2.0"
        },
        {
            "src": "./img/android-icon-144x144.png",
            "sizes": "144x144",
            "type": "image\/png",
            "density": "3.0"
        },
        {
            "src": "./img/android-icon-192x192.png",
            "sizes": "192x192",
            "type": "image\/png",
            "density": "4.0"
        }
    ],
    "categories": ["communication", "webrtc"],
    "description": "Real Time Peer to Peer Web Site",
    "serviceworker": {
      "src": "./MasterServiceWorker.js",
      "scope": "./",
      "type": "",
      "update_via_cache": "none"
    }
  }