YouTube Background Launcher

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "YouTube Background Launcher",
  "description": "Enables launching YouTube videos into the background, allowing you to close the tab and control the video from any other tab/window.",
  "version": "1.1",
  "icons": {
    "1024": "icon_1024.png"
  },
  "browser_action": {
    "default_icon": "toolbar-icon.png",
    "default_popup": "popup.html"
  },
  "background": {
    "page": "background.html"
  },
  "permissions": [
    "activeTab",
    "http://youtube.com/*",
    "https://youtube.com/*",
    "https://i.ytimg.com/*",
    "https://*.ytimg.com/*",
    "notifications"
  ],
  "content_security_policy": "script-src 'self' https://s.ytimg.com https://www.youtube.com; object-src 'self'",
  "content_scripts": [
    {
      "js": [
        "jquery-3.0.0.min.js",
        "contentscript.js"
      ],
      "matches": [
        "http://youtube.com/*",
        "https://youtube.com/*",
        "http://www.youtube.com/*",
        "https://www.youtube.com/*"
      ]
    }
  ]
}