Bitcoin calculator

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Bitcoin calculator",
  "version": "1.3",
  "description": "Bitcoin calculator with live rate",
  "action": {
    "default_popup": "index.html",
    "default_icon": {
      "32": "images/logox32.png",
      "64": "images/logox64.png",
      "128": "images/logox128.png"
    }
  },
  "manifest_version": 3,
  "content_security_policy": {
    "extension_page": "script-src 'self' 'unsafe-eval'; object-src 'self'"
  }
}