OS2faktor Chrome Extension

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "OS2faktor Chrome Extension",
  "manifest_version": 3,
  "version": "2.2.1",
  "minimum_chrome_version": "88",
  "description": "Google Chrome - OS2faktor client",
  "permissions": [
    "background",
    "gcm",
    "notifications",
    "tabs",
    "storage",
    "alarms",
    "system.display"
  ],
  "host_permissions": [
    "https://backend.os2faktor.dk/*",
    "https://frontend.os2faktor.dk/*"
  ],
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/icon_128.png"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "icons": {
    "128": "images/icon_128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "images/icon_128.png"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "storage": {
    "managed_schema": "schema.json"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "eventListener.js"
      ]
    }
  ],
  "externally_connectable": {
    "matches": [
      "https://*.os2faktor.dk/*"
    ]
  }
}