Path of Exile MTX shop filter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Path of Exile MTX shop filter",
  "version": "1.0.0",
  "description": "Filter capability for the Path of Exile shop",
  "manifest_version": 2,
  "permissions": [
    "https://www.pathofexile.com/shop/*"
  ],
  "web_accessible_resources": [
    "filterbar.html"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.pathofexile.com/shop/*"
      ],
      "css": [
        "filterbar.css"
      ],
      "js": [
        "jquery-3.4.1.min.js",
        "main.js"
      ]
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self';",
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  }
}