chromium/chrome/test/data/extensions/api_test/user_scripts/persistent_scripts/manifest.json

{
  "manifest_version": 3,
  "name": "Persistent user script test extension",
  "version": "0.1",
  "description": "Tests that user scripts can persist across sessions",
  "background": {
    "service_worker": "worker.js",
    "type": "module"
  },
  "permissions": [
    "scripting",
    "tabs",
    "userScripts"
  ],
  "host_permissions": [
    "*://requested.com/*"
  ]
}