Help us understand the problem. What is going on with this article?

「ユーチューブ自動いいね」のChrome拡張機能を作成中

ふと拡張機能を作ってみたくなり、javascriptの勉強中。

ユーチュブの自分の投稿動画ページにて10個ほど「いいね」するシンプルなモノを作ろうとしてみる。

manifesto.json
{
  "name": "Youtube Auto Favo Count",
  "version": "1.0.0",
  "manifest_version": 2,
  "description": "",
  "content_scripts": [{
    "matches": ["http://www.youtube.com/*", "https://www.youtube.com/*"],
    "js": ["lib/jquery.min.js", "lib/jquery.easing.js", "js/content.js"]
  }]
}
content.js
alert('Youtube Auto Favo')
document.querySelectorAll('#like-button').forEach((v,i)=>{if(i<10)v.click();})

上記をデベロッパーモードで読み込んだが、アラート表示の「Youtube Auto Favo」は表示されたが、
肝心の「いいね」はクリックされなかった。

現状の課題

いいねボタンのクリック。

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