Private Note as default for Zendesk

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Private Note as default for Zendesk",
  "description": "This extension shows sets Private Note as default in Zendesk",
  "version": "1.1",
  "icons": {
    "32": "icon-32.png",
    "48": "icon-48.png",
    "64": "icon-128.png",
    "128": "icon-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "pnd.js"
      ],
      "matches": [
        "https://*.zendesk.com/agent/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "content_security_policy": "default-src 'self'"
}