Examine source code of GJL2CJ_Plugin

{
  "manifest_version": 2,
  "name": "GJL2CJ_Plugin",
  "version": "5.0",
  "content_scripts": [
    {
      "matches": [
        "https://blog.csdn.net/cj1064789374/article/details/*"
      ],
      "js": [
        "app.js"
      ]
    }
  ]
}