Is recaptcha working with internationalized domain name

Hello,I have a problem.I have a internationalized domain name (with accent) and my recaptcha doesn't work.The page display "An error occurred: An internal error occurred: 50DB25C72EA40.AB424AA.7E005C31"And i have a "500 Internal Server Error" from "google.com"In the recaptcha domain form register i wrote my domain with accent and his internationalized shape : xn--*****-fzb.com retrieved from chrome URL bar.The reCaptcha works fine on the domain without accent but my client want the accent domain.Can you help me please ?Thanks -- 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.