Auto Admit

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "__MSG_appName__",
  "description": "__MSG_appName__",
  "version": "2.1.1",
  "manifest_version": 2,
  "default_locale": "en",
  "background": {
    "persistent": false,
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "res/icons/icon-16.png",
      "32": "res/icons/icon-32.png",
      "48": "res/icons/icon-48.png",
      "128": "res/icons/icon-128.png"
    }
  },
  "icons": {
    "16": "res/icons/icon-16.png",
    "32": "res/icons/icon-32.png",
    "48": "res/icons/icon-48.png",
    "128": "res/icons/icon-128.png"
  },
  "offline_enabled": true,
  "content_scripts": [
    {
      "matches": [
        "https://meet.google.com/*"
      ],
      "js": [
        "js/content_script.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "res/button-off.png",
    "res/button-on.png",
    "res/btn.css"
  ]
}