Also seeing similar errors in IE8 when hitting Unbounce page directly (so I don’t think it’s an iframe issue):
Webpage error details
Message: Script error
Line: 0
Char: 0
Code: 0
URI: http://d2xxq4ijfwetlm.cloudfront.net/…
Message: ‘window.ub.page’ is null or not an object
Line: 786
Char: 1
Code: 0
URI: http://offer.theblaze.com/blazetv-ifr…