Examine source code of HireHunter Plugin

{
  "manifest_version": 2,
  "name": "HireHunter Plugin",
  "description": "WE WILL HUNT THE BEST HIRES IN TOWN!\nwww.hirehunter.com.au helps you save money hiring your construction needs online!",
  "version": "1.0.0",
  "browser_action": {
    "default_icon": "assets/icons/plugin-icon-32.png",
    "default_popup": "index.html"
  },
  "icons": {
    "16": "assets/icons/plugin-icon-16.png",
    "32": "assets/icons/plugin-icon-32.png"
  },
  "background": {
    "scripts": [
      "./constant.js",
      "./assets/js/vendor/jquery-3.3.1.min.js",
      "./assets/js/background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "cookies",
    "tabs",
    "webRequest",
    "*://*.kennards.com.au/*",
    "*://*.bunnings.com.au/*",
    "*://*.coateshire.com.au/*",
    "*://*.hire-now.coateshire.com.au/*",
    "*://*.hire-now-api.coateshire.com.au/*",
    "*://*.kennards.com.au/checkout/hire/success/*",
    "*://*.coateshire.com.au/success?ref=*",
    "*://*.kennards.com.au/*.html",
    "*://*.hire-now.coateshire.com.au/*/*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.kennards.com.au/*",
        "*://*.bunnings.com.au/*",
        "*://*.hire-now.coateshire.com.au/*",
        "*://*.coateshire.com.au/*"
      ],
      "js": [
        "./assets/js/injection/inject.js"
      ]
    },
    {
      "matches": [
        "*://*.hirehunter.com.au/login",
        "*://*.hirehunter.com.au/account",
        "*://*.hirehunter.com.au/*/*"
      ],
      "js": [
        "./assets/js/vendor/jquery-3.3.1.min.js",
        "./assets/js/injection/localInject.js"
      ]
    }
  ]
}