manifest.json

{
  "manifest_version": 3,
  "name": "Responsive Design Checker",
  "version": "2.0",
  "description": "Check website responsiveness across common devices",
  "permissions": [
    "activeTab",
    "scripting",
    "tabs",
    "declarativeNetRequest"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "service_worker": "background.js"
  },
  "web_accessible_resources": [
    {
      "resources": ["responsive.html", "responsive.js", "devices.json"],
      "matches": ["<all_urls>"]
    }
  ],
  "declarative_net_request": {
    "rule_resources": [{
      "id": "ruleset_1",
      "enabled": true,
      "path": "removeHeader.json"
    }]
  },
  "minimum_chrome_version": "88"
}