Crypto Price Checker

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Crypto Price Checker",
  "description": "Check crypto prices!",
  "version": "2.0.0",
  "icons": {
    "128": "icon_128.png"
  },
  "permissions": [
    "https://www.coingecko.com/en/widgets/",
    "https://www.cryptonator.com/ui/js/widget/"
  ],
  "background": {
    "scripts": [
      "jquery-3.3.1.js"
    ],
    "persistent": false
  },
  "content_security_policy": "script-src 'self' https://www.cryptonator.com/ui/js/widget/calc_widget.js https://widgets.coingecko.com/coingecko-coin-price-marquee-widget.js https://widgets.coingecko.com/coingecko-beam-widget.js; object-src 'self'",
  "content_scripts": [
    {
      "matches": [
        "https://www.coingecko.com/en/widgets/",
        "https://www.cryptonator.com/ui/js/widget/"
      ],
      "js": [
        "jquery-3.3.1.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  }
}