BookWidgets Google Classroom Integration

manifest.json

{
  "manifest_version": 2,
  "version": "1.7.1",
  "icons": {
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "page_action": {
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "css": [
        "styles.css"
      ],
      "js": [
        "content.js"
      ],
      "matches": [
        "https://classroom.google.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "icon-24-bw.png",
    "icon-48.png"
  ],
  "externally_connectable": {
    "matches": [
      "https://www.bookwidgets.com/sso/google?*",
      "https://www.bookwidgets.com/sso/register?*",
      "https://www.bookwidgets.com/a/oauth2_return?*"
    ]
  },
  "permissions": [
    "declarativeContent"
  ],
  "name": "BookWidgets Google Classroom Integration",
  "short_name": "BookWidgets",
  "description": "This extension integrates BookWidgets into Google Classroom.",
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}