https://technet.microsoft.com/en-us/library/dn531055.aspx
http://meta.stackexchange.com/questions/56161/which-browsers...
https://support.google.com/mail/answer/6557?hl=en
https://support.google.com/a/answer/33864?hl=en
http://www.amazon.com/gp/help/customer/display.html?nodeId=2... (notable exceoption for IE8, would love to know the reason)
etc.