Web Site Checker for Web Developers

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Web Site Checker for Web Developers",
  "description": "SEO Check Tool for Developers",
  "version": "1.3",
  "manifest_version": 3,
  "icons": {
    "16": "common/img/icon-16x16.png",
    "48": "common/img/icon-48x48.png",
    "128": "common/img/icon-128x128.png"
  },
  "permissions": [
    "declarativeContent",
    "activeTab",
    "scripting"
  ],
  "background": {
    "service_workser": "common/js/background.js"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "common/js/contents.js"
      ],
      "css": [
        "common/css/contents.css"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Web Site Checker for Web Developers",
    "default_icon": {
      "19": "common/img/default-icon.png"
    }
  },
  "commands": {
    "_execute_page_action": {
      "suggested_key": {
        "default": "Shift+Alt+C",
        "windows": "Shift+Alt+C",
        "mac": "Shift+Alt+C"
      },
      "global": false
    }
  }
}