chromium/chrome/test/data/extensions/manifest_tests/background_page_invalid_persistent_key_app.json

{
  "name": "test",
  "version": "1",
  "manifest_version": 2,
  "background": {
    "persistent": true
  },
  "app": {
    "background": {
      "page": "background_app/BackgroundApp.html"
    }
  }
}