Examine source code of MedDic

{
  "manifest_version": 2,
  "name": "MedDic",
  "version": "2.0.4resigned1",
  "description": "全医药学大词典即指即译取词模块。",
  "applications": {
    "gecko": {
      "id": "{6b8f9ad9-16f9-4bcf-9bb4-3b3a3d4c7726}"
    }
  },
  "icons": {
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "72": "icons/icon-72.png"
  },
  "permissions": [],
  "content_security_policy": "script-src 'self'; object-src 'self'; media-src http://www.kingyee.com.cn",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ]
}