AntiXss 4.2.1 breaks goolge's recaptcha

Jul 2, 2013 at 8:17 PM
Edited Jul 2, 2013 at 8:48 PM
Using AntiXss everything was working perfectly but as long as I moved to 4.2.1 recaptcha initial call to google site is not allowed. It displays:
"A potentially dangerous Request.Path value was detected from the client (:)."

I am using it as the default encoder in web.config