reCAPTCHA is not working in IE8 in ASP.NET application

I'm using Recaptcha ASP.NET control and it works fine on all browsers except IE8. When I'm opening a page with recaptcha it simply is not displayed on page. IE says that there's an error on the page. Here are the details of Javascript error in IE8: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E) Timestamp: Wed, 2 Oct 2013 11:53:48 UTC Message: Unknown runtime error Line: 112 Char: 424 Code: 0 URI: https://www.google.com/recaptcha/api/js/recaptcha.js Here's the code line in recaptcha.js that produces exception: Recaptcha.widget.innerHTML='

'+d+"

" where 'd' variable is actually recaptcha table Maybe someone knows the remedy? -- 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://groups.google.com/group/recaptcha. For more options, visit https://groups.google.com/groups/opt_out.