Google Recaptcha v2 is not working with rails application in production

 I am using http://bit.ly/1D5geir gem to add Recaptcha v2 in my rails application. This works fine on local-host environment, both in development and    production, but when I am using this on VM(Azure VM), it gives ERROR: Stoken Expired issue. Screenshot of the issue http://bit.ly/1DLrhYO More details: Rails version 4.2.1 Passenger Phusion server(5.0) On VM(Ubuntu 14.10), rails application runs on local-host(port:3000) and all external request on server is redirected to local-host. I tried to Google this issue but I am unable to find any solution that works. Solution I tried -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.