chromium/chrome/test/data/extensions/api_test/service_worker/web_accessible_resources/iframe_src/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": [
    "iframe.html",
    "iframe.js",
    "iframe_non_existent.html",
    "iframe_non_existent.js"
  ],
  "background": {
    "scripts": ["background.js"]
  },
  "version": "1",
  "manifest_version": 2
}