Status Code Checker

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Status Code Checker",
  "version": "0.2",
  "description": "A test (prototype) version of the extension which will give you statuses for urls based on our database.",
  "manifest_version": 3,
  "action": {},
  "icons": {
    "16": "icons/16.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "background": {
    "service_worker": "background/service-worker.js"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content/index.js"
      ],
      "css": [
        "content/index.css"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "storage"
  ]
}