Retro Bowl - Unblocked Game

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "version": "2.0.1",
  "name": "__MSG_AppName__",
  "description": "__MSG_AppDesc__",
  "homepage_url": "https://retrobowl.me",
  "default_locale": "en",
  "action": {
    "default_icon": {
      "16": "img/16x16.png",
      "48": "img/48x48.png",
      "128": "img/128x128.png",
      "256": "img/256x256.png"
    },
    "default_popup": "play.html"
  },
  "background": {
    "service_worker": "background.js"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "offline_enabled": true,
  "content_scripts": [
    {
      "matches": [
        "https://retrobowl.me/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "16": "img/16x16.png",
    "48": "img/48x48.png",
    "128": "img/128x128.png",
    "256": "img/256x256.png"
  },
  "sandbox": {
    "pages": [
      "game/retro.html"
    ]
  }
}