chrome/test/data/extensions/api_test/tabs/javascript_url_permissions/manifest.json

{
  "name": "javascript url permissions test",
  "version": "0.1",
  "manifest_version": 2,
  "description": "Tests that navigating a tab to a javascript URLs only works if the extension has access to that tabs host.",
  "background": {
    "page": "test.html"
  },
  "permissions": ["tabs", "http://b.com/"]
}