Examine source code of Web Proxy Server

{
  "name": "Web Proxy Server",
  "description": "Using Web Proxy Server: Secure your browsing with a proxy server for each tab.",
  "version": "2.0.2",
  "default_locale": "en",
  "manifest_version": 2,
  "icons": {
    "16": "images/16x16.png",
    "48": "images/48x48.png",
    "64": "images/64x64.png",
    "96": "images/96x96.png",
    "128": "images/128x128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "91.1.0",
      "id": "{bb38eeb2-acfc-4c0b-a404-f0af34b4d2ca}"
    }
  },
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Web Proxy Server"
  },
  "permissions": [
    "tabs",
    "storage",
    "proxy",
    "webRequest",
    "webRequestAuthProvider",
    "https://*/*",
    "http://*/*"
  ],
  "commands": {
    "_execute_browser_action": {
      "description": "Open Web Proxy",
      "suggested_key": {
        "default": "Ctrl+Shift+7",
        "mac": "Command+Shift+7"
      }
    }
  }
}