Ping

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Ping",
  "description": "This extension is a starting point to create a real Chrome extension",
  "version": "0.0.1",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Open the popup"
  },
  "icons": {
    "16": "logo.png",
    "48": "logo.png",
    "128": "logo.png"
  },
  "permissions": [
    "identity",
    "contextMenus",
    "identity",
    "cookies",
    "storage"
  ],
  "oauth2": {
    "client_id": "141050415697-qkcnt88bq38368k3l9bpprr6tvds9c2r.apps.googleusercontent.com",
    "scopes": [
      "https://apis.google.com",
      "https://accounts.google.com/o/oauth2/auth",
      "https://oauth2.googleapis.com/token",
      "https://www.googleapis.com/oauth2/v1/certs"
    ]
  },
  "content_security_policy": "script-src 'self' https://apis.google.com; object-src 'self'"
}