檢查WordPress 為何這麼慢時，看到這錯誤
WebSocket connection to ‘wss://public-api.wordpress.com/pinghub/wpcom/me/newest-note-data’ failed: Error during WebSocket handshake: Unexpected response code:
參閱官方文件：https://github.com/Automattic/pinghub/issues/8
及回覆，在這問題解決前暫且先關了通知https://yoursite.com/wp-admin/admin.php?page=jetpack_modules
Closing as duplicate of 604-gh-notifications-client.
