Examine source code of Youtube blind redirect

{
  "manifest_version": 2,
  "name": "Youtube blind redirect",
  "version": "1.1",
  "description": "Youtube Private Redirect, Don't let google monitors redirects",
  "icons": {
    "48": "icons/icon-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/watch*"
      ],
      "js": [
        "YT.js"
      ],
      "run_at": "document_start"
    }
  ]
}