Office Developer: Request from Office for Apps going to ajax.aspnetcdn.com getting a 502 error?

In recent times, i was working with this customer where they created an Outlook add-in (Office for Apps/Office.js). They noticed that a request from Office for Apps going to ajax.aspnetcdn.com getting HTTP 502 error. During debugging (network sniffs) we noticed that issue happens that the URLs were blocked by their AV, Proxy Server settings. On…