If you load your demo using IE8 from the following URL:
You will notice a script error, the following:
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, 28 Oct 2015 11:43:32 UTC
Message: Script error
This is due to the following line in your script:
Where "vertical-rl" is not a valid value in IE8. If the script is delivered by CDN the error will show as per your site, and the control will still work as intended. However if you don't use CDN, the error occurs and stops all further scripts running, causing the site to stop working. The site I am working is on a private network which will not have access to the CDN, can you provide a work around? Preferably not to download all the script files, manually fix the broken one, and point to the local versions, until you fix it in the next release.