Examine source code of Captura_Edicao

{
  "manifest_version": 2,
  "name": "Extract_Header",
  "version": "1.0",
  "description": "Extensão para capturar cabeçalhos de requisição e baixar imagens.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "https://opopular.com.br/*",
    "https://daqui.opopular.com.br/*",
    "https://api-flip.ojc.com.br/*",
    "https://generico.empauta.com/*",
    "storage"
  ],
  "icons": {
    "48": "icons/food.png"
  },
  "background": {
    "scripts": [
      "extract_header.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://opopular.com.br/*",
        "https://daqui.opopular.com.br/*"
      ],
      "js": [
        "lib/pdf-lib.min.js",
        "popup.js",
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "popup.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3c2a75ed-b608-4669-b35f-7c4fa47bba3f}"
    }
  }
}