Examine source code of my-rent-extension

{
  "name": "rent",
  "version": "0.2.0",
  "description": "",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://m.591.com.tw/*"
      ],
      "run_at": "document_end",
      "js": [
        "index.js"
      ]
    }
  ],
  "permissions": [
    "storage"
  ]
}