Let's play TF2

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Let's play TF2",
  "author": "Pablo R. Dinella",
  "version": "0.5.0",
  "description": "Veja em tempo real quem está online nos servidores do Aww Yeah no Team Fortress 2.",
  "icons": {
    "16": "16.png",
    "48": "48.png",
    "128": "128.png"
  },
  "browser_action": {
    "default_icon": "19.png",
    "default_title": "Let's play TF2",
    "default_popup": "index.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "alarms"
  ],
  "content_security_policy": "script-src 'self' https://ssl.google-analytics.com/ https://www.google-analytics.com/; object-src 'self'"
}