chromium/chrome/test/data/banners/manifest_prefer_related_apps_unknown.json

{
  "name": "Manifest prefer related apps unknown",
  "icons": [
    {
      "src": "/banners/image-512px.png",
      "sizes": "512x512",
      "type": "image/png"
    }
  ],
  "scope": ".",
  "start_url": ".",
  "display": "standalone",
  "prefer_related_applications": true,
  "related_applications": [{
    "platform": "unknown platform",
    "id": "abcdef"
  }]
}