Unable to log into embedded Mediasite page on iOS KBA000003903

Authentication fails when using Mobile Safari on iOS 6 or later to log into a Mediasite page (presentation, catalog) that is embedded in an iframe.

This issue is related to how Mobile Safari handles cookies when a page is embedded in an iframe. Changing the Mobile Safari cookie settings will work around the issue. See this article on Apple's website for instructions:

http://support.apple.com/kb/TS4207