chrome/test/data/web_apps/scope_updating/manifest-narrow.json

{
  "id": "/web_apps/scope_updating/",
  "name": "Scope Updating App",
  "start_url": "page.html",
  "scope": "/web_apps/scope_updating/page",
  "display": "standalone",
  "icons": [
    {
      "src": "basic-192.png",
      "sizes": "192x192",
      "type": "image/png"
    }
  ]
}