chromium/chrome/test/data/extensions/api_test/context_menus/event_page/manifest.json

{
  "name": "chrome.contextMenus ids for event pages",
  "version": "0.1",
  "manifest_version": 2,
  "description": "test for string IDs working and generated integer IDs failing",
  "background": {
    "persistent": false,
    "scripts": ["test.js"]
  },
  "permissions": ["contextMenus"]
}