Our avatars work on all modern browsers on Windows, Mac, iOS and Android.
We regularly and extensively test all avatar functionality across the board, including all API functions.
As browsers evolve - we continuously adapt our APIs to support updates and changes. Because SitePal is a cloud based solution - this process is for the most part transparent to our clients.
By "all modern browsers" - I am referring to Chrome, Firefox, MS Edge, Safari.
Opera is not officially supported, but I believe it works.
IE11 is still supported, but will be deprecated probably later this year as its penetration dips under 1%.
Hope this helps,
Customer support service by UserEcho