Examine source code of Cacao CORS Proxy

{
  "manifest_version": 2,
  "name": "Cacao CORS Proxy",
  "version": "1.0.1resigned1",
  "author": "Michael FIG",
  "description": "Cacao (CORS Access-Control-Allow-Origin) Proxy",
  "short_name": "Cacao",
  "homepage_url": "https://github.com/michaelfig/cacao-extension",
  "icons": {
    "48": "cacao48.png",
    "96": "cacao96.png",
    "128": "cacao128.png"
  },
  "permissions": [
    "*://*/*",
    "webRequest",
    "webRequestBlocking",
    "storage"
  ],
  "options_ui": {
    "page": "options/cacao-options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.poc.ts.liveblockauctions.com/ms/publish.html",
        "*://localhost/publish.html"
      ],
      "js": [
        "browser-polyfill.min.js",
        "cacao-server.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "cacao-client.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4021ee88-394b-441c-a6c7-901f42bc5a28}"
    }
  }
}