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

{
  "name": "Manifest prefer related chrome app",
  "icons": [
    {
      "src": "image-512px.png",
      "sizes": "512x512",
      "type": "image/png"
    }
  ],
  "scope": ".",
  "start_url": "manifest_test_page.html",
  "display": "standalone",
  "prefer_related_applications": true,
  "related_applications": [{
    "platform": "chrome_web_store",
    "id": "some id that's not installed"
  }]
}