chromium/chrome/test/data/extensions/api_test/webrequest/initiator_split/manifest.json

{
  "name": "webRequest",
  "version": "1.0",
  "manifest_version": 2,
  "description": "Regression test for crbug.com/934398.",
  "permissions": ["webRequest", "<all_urls>"],
  "incognito": "split",
  "background": {
    "scripts": ["background.js"],
    "persistent": true
  }
}