Examine source code of ShopBack - Cashback & Rewards

{
  "manifest_version": 2,
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "homepage_url": "https://www.shopback.com",
  "version": "8.48.0",
  "version_name": "8.48.0",
  "default_locale": "en",
  "background": {
    "scripts": [
      "js/runtime.df1295eb.js",
      "js/background.8fc10985.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "shopback@shopback.com"
    }
  },
  "content_scripts": [
    {
      "all_frames": false,
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/runtime.df1295eb.js"
      ],
      "run_at": "document_start",
      "css": []
    },
    {
      "matches": [
        "*://www.shopback.com/*",
        "*://www.shopback.com.au/*",
        "*://www.shopback.com.hk/*",
        "*://www.shopback.co.id/*",
        "*://www.shopback.co.kr/*",
        "*://www.shopback.co.nz/*",
        "*://www.shopback.de/*",
        "*://www.shopback.my/*",
        "*://www.shopback.ph/*",
        "*://www.shopback.sg/*",
        "*://www.shopback.co.th/*",
        "*://www.shopback.com.tw/*"
      ],
      "exclude_matches": [
        "*://www.shopback.com/redirect/alink/*",
        "*://www.shopback.com.au/redirect/alink/*",
        "*://www.shopback.com.hk/redirect/alink/*",
        "*://www.shopback.co.id/redirect/alink/*",
        "*://www.shopback.co.kr/redirect/alink/*",
        "*://www.shopback.co.nz/redirect/alink/*",
        "*://www.shopback.de/redirect/alink/*",
        "*://www.shopback.my/redirect/alink/*",
        "*://www.shopback.ph/redirect/alink/*",
        "*://www.shopback.sg/redirect/alink/*",
        "*://www.shopback.co.th/redirect/alink/*",
        "*://www.shopback.com.tw/redirect/alink/*",
        "*://www.shopback.com/*/redirects/*",
        "*://www.shopback.com.au/*/redirects/*",
        "*://www.shopback.com.hk/*/redirects/*",
        "*://www.shopback.co.id/*/redirects/*",
        "*://www.shopback.co.kr/*/redirects/*",
        "*://www.shopback.co.nz/*/redirects/*",
        "*://www.shopback.de/*/redirects/*",
        "*://www.shopback.my/*/redirects/*",
        "*://www.shopback.ph/*/redirects/*",
        "*://www.shopback.sg/*/redirects/*",
        "*://www.shopback.co.th/*/redirects/*",
        "*://www.shopback.com.tw/*/redirects/*"
      ],
      "js": [
        "js/installationFlagInjector.ab828da3.js"
      ],
      "run_at": "document_start",
      "css": []
    },
    {
      "matches": [
        "*://www.shopback.com/redirect/alink/*",
        "*://www.shopback.com.au/redirect/alink/*",
        "*://www.shopback.com.hk/redirect/alink/*",
        "*://www.shopback.co.id/redirect/alink/*",
        "*://www.shopback.co.kr/redirect/alink/*",
        "*://www.shopback.co.nz/redirect/alink/*",
        "*://www.shopback.de/redirect/alink/*",
        "*://www.shopback.my/redirect/alink/*",
        "*://www.shopback.ph/redirect/alink/*",
        "*://www.shopback.sg/redirect/alink/*",
        "*://www.shopback.co.th/redirect/alink/*",
        "*://www.shopback.com.tw/redirect/alink/*",
        "*://www.shopback.com/*/redirects/*",
        "*://www.shopback.com.au/*/redirects/*",
        "*://www.shopback.com.hk/*/redirects/*",
        "*://www.shopback.co.id/*/redirects/*",
        "*://www.shopback.co.kr/*/redirects/*",
        "*://www.shopback.co.nz/*/redirects/*",
        "*://www.shopback.de/*/redirects/*",
        "*://www.shopback.my/*/redirects/*",
        "*://www.shopback.ph/*/redirects/*",
        "*://www.shopback.sg/*/redirects/*",
        "*://www.shopback.co.th/*/redirects/*",
        "*://www.shopback.com.tw/*/redirects/*"
      ],
      "js": [
        "js/cashbackActivator.1e843523.js"
      ],
      "run_at": "document_idle",
      "css": []
    },
    {
      "all_frames": false,
      "matches": [
        "*://*/*"
      ],
      "js": [
        "js/contentApp.8f777ec4.js"
      ],
      "run_at": "document_end",
      "css": []
    }
  ],
  "options_ui": {
    "page": "preferences.html"
  },
  "browser_action": {
    "browser_style": true,
    "default_title": "ShopBack Button",
    "default_popup": "popup.html",
    "default_icon": "images/icon/Red-32.png"
  },
  "permissions": [
    "alarms",
    "cookies",
    "scripting",
    "storage",
    "tabs",
    "webNavigation",
    "webRequest",
    "*://*/*",
    "*://www.shopback.com/*",
    "*://www.shopback.com.au/*",
    "*://www.shopback.com.hk/*",
    "*://www.shopback.co.id/*",
    "*://www.shopback.co.kr/*",
    "*://www.shopback.co.nz/*",
    "*://www.shopback.my/*",
    "*://www.shopback.ph/*",
    "*://www.shopback.sg/*",
    "*://www.shopback.co.th/*",
    "*://www.shopback.com.tw/*",
    "<all_urls>"
  ],
  "icons": {
    "16": "images/icon/Red-16.png",
    "18": "images/icon/Red-18.png",
    "32": "images/icon/Red-32.png",
    "48": "images/icon/Red-48.png",
    "64": "images/icon/Red-128.png",
    "128": "images/icon/Red-128.png"
  },
  "web_accessible_resources": [
    "chunks.json",
    "js/*",
    "images/*",
    "injector.js"
  ]
}