Exchange Server 2013 OWA Redirect Issues

Hi guys,

We're having issues with the redirect feature in Exchange Server 2013 CU1 running on the Windows Server 2012.  I have been following MSMVPS Redirecting OWA URLs in Exchange 2010/2013 article.
http://blogs.msmvps.com/acefekay/2013/04/16/redirect-owa-exchange-2010-exchange-2013-the-cool-and-easy-method/

so if I type into a browser just "bb.myexchange2013.com/owa". OWA doesn't work properly. But if i type in "https://bb.myexchange2013.com/owa" it works fine! Any feedback would be appreciated! 

Typed in "bb.myexchange2013.com/owa"