chromium/chrome/test/data/extensions/api_test/service_worker/web_accessible_resources/fetch/manifest.json

{
  "name": "Extension: web_accessible_resources and ServiceWorker",
  "description": "Extension to test web_accessible_resources that is served by a ServiceWorker",
  "web_accessible_resources": [
    "data_for_extension"
  ],
  "version": "1",
  "manifest_version": 2
}