Examine source code of Partisan Gauge

{
  "name": "Partisan Gauge",
  "version": "0.9",
  "description": "Determines your 'partisan alignment', based on news sites accessed in your browsing history",
  "icons": {
    "128": "128.png"
  },
  "permissions": [
    "identity",
    "storage",
    "webRequest",
    "history",
    "http://115.146.93.15/*"
  ],
  "browser_action": {
    "default_popup": "partisan.html"
  },
  "manifest_version": 2,
  "content_security_policy": "script-src 'self' https://maxcdn.bootstrapcdn.com/; object-src 'self'"
}