Track post code

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Track post code",
  "description": "Tracking post codes from page",
  "version": "1.2.1",
  "browser_action": {
    "default_icon": "icon48.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "css": [
        "contentscript.css"
      ],
      "js": [
        "contentscript.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "images/*.png",
    "images/*.jpg"
  ],
  "permissions": [
    "activeTab"
  ]
}