Examine source code of TinyURL Bypass

{
  "description": "Automatically redirect tiny url without waiting for the timer.",
  "manifest_version": 2,
  "name": "TinyURL Redirect",
  "version": "1.2",
  "icons": {
    "48": "icons/border-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.tinyurl.is/*",
        "*://*.tinyurl.so/*"
      ],
      "js": [
        "redirect.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0254ae1e-c7d1-4e64-a27f-4ca75a1f2c56}"
    }
  }
}