chromium/chrome/test/data/extensions/api_test/service_worker/worker_based_background/fetch_file_scheme_url_with_file_access/manifest.json

{
  "name": "Service Worker-based background script",
  "description": "Test that fetching a file scheme URL succeeds",
  "version": "1",
  "manifest_version": 3,
  "host_permissions": ["file:///*"],
  "background": {"service_worker": "service_worker_background.js"}
}