Examine source code of Server IP

{
  "name" : "Server IP",
  "description" : "Displays server IP address on every website",
  "version" : "0.2.8",
  "manifest_version" : 3 ,
  "permissions" : [
    "storage" ,
    "webRequest" ,
    "scripting" ,
    "alarms" 
  ],
  "host_permissions" : [
    "*://*/*" 
  ],
  "background" : {
    "service_worker" : "worker.js" ,
    "scripts" : [
      "worker/require.js" ,
      "worker/vendor/jgeoip.js" ,
      "worker/worker.js" ,
      "cache.js" ,
      "worker.js" 
    ]
  },
  "homepage_url" : "https://webextension.org/listing/country-flags.html?from=server-ip",
  "icons" : {
    "16" : "data/icons/16.png",
    "32" : "data/icons/32.png",
    "48" : "data/icons/48.png",
    "64" : "data/icons/64.png",
    "128" : "data/icons/128.png",
    "256" : "data/icons/256.png",
    "512" : "data/icons/512.png"
  },
  "content_scripts" : [
    {
      "matches" : [
        "*://*/*" 
      ],
      "run_at" : "document_start" ,
      "css" : [
        "data/ip.css" 
      ],
      "js" : [
        "data/verify.js" 
      ]
    }
  ],
  "options_ui" : {
    "page": "data/options/index.html" 
  },
  "web_accessible_resources" : [
    {
      "resources" : [
        "data/ip/*" 
      ],
      "matches" : [
        "*://*/*" 
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{15c2f6cc-3e9e-4ced-9d27-ee5d0e2b3ce2}",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}