The following URLs must be accessible across both http and https in order to use GoAnimate:
*.goanimate.com (where * is a wildcard)
The following URLs must be accessible across the Secured WebSocket protocol on port 443:
api.goanimate.com (only needed for MS Outlook Add-in)
5/24/16 - Added requirement for api.goanimate.com across WSS port 443 for use with the Microsoft Outlook Add-in that allows watching videos from within an email in MS Outlook.
3/22/16 - Replaced requirement for port 1337 for preview.goanimate.com with more standard port 443