Get class schedule from webreg

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Get class schedule from webreg",
  "description": "This extension will download the class schedule in ics format.",
  "version": "1.0",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_title": "Download the class schedule",
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "content_scripts": [
    {
      "run_at": "document_end",
      "matches": [
        "https://act.ucsd.edu/*"
      ],
      "js": [
        "ics.deps.min.js",
        "ics1.js",
        "script.js"
      ]
    }
  ]
}