Examine source code of Discord Blocker

{
  "manifest_version": 2,
  "name": "Discord Blocker",
  "version": "1.0",
  "description": "Extension to block discord from accessing if the user is from Turkey.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "https://*.discord.com/*",
    "http://ip-api.com/"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0f680320-5209-4fa1-b04b-11a6cb6c9590}"
    }
  }
}