Hreflang Checker

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Hreflang Checker",
  "description": "Quickly check hreflang tags on webpages for SEO. See if a page's language code, region code, and return links match.",
  "version": "1.6",
  "permissions": [
    "activeTab",
    "scripting",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/icon-16x16.png",
      "48": "images/icon-48x48.png",
      "128": "images/icon-128x128.png"
    }
  },
  "background": {
    "service_worker": "background.js",
    "type": "module"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "fetchHreflang.js",
        "background.js",
        "popup.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "images/icon-16x16.png",
    "48": "images/icon-48x48.png",
    "128": "images/icon-128x128.png"
  }
}