Examine source code of LeetHub

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    "16": "assets/thumbnail.png",
    "48": "assets/thumbnail.png",
    "128": "assets/thumbnail.png"
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    "persistent": false
  },
  "permissions": [
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    "https://leetcode.com/*",
    "https://practice.geeksforgeeks.org/*",
    "tabs",
    "unlimitedStorage",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://leetcode.com/*",
        "https://github.com/*",
        "https://practice.geeksforgeeks.org/*"
      ],
      "js": [
        "scripts/leetcode.js",
        "scripts/authorize.js",
        "scripts/gfg.js"
      ],
      "run_at": "document_idle"
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  "content_security_policy": "script-src 'self' https://code.jquery.com/jquery-3.3.1.min.js https://github.com/login/oauth/authorize https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.4.1/semantic.min.js; object-src 'self'",
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    "gecko": {
      "id": "{4d0cc7bc-ef39-4413-b41c-a43af3ad676e}"
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