chromium/chrome/test/data/extensions/api_test/webnavigation/fencedFramesMappedURL/manifest.json

{
  "manifest_version": 3,
  "name": "MappedURL",
  "version": "0.1",
  "permissions": ["tabs", "webNavigation"],
  "background": {
    "service_worker": "background.js"
  },
  "host_permissions": ["*://*/*"]
}