Hi, we’ve tested in with our demo website and different IE versions, and it was always working. After hours of working and searching for the problem, we’ve decided to compare the source code from our demo website and yours, and now I think we’ve found the problem. The only different part on your website is this line of code:
<meta http-equiv="X-UA-Compatible" content="IE=edge">
And to the fact that is a command for the Internet Explorer, I think right this code cause the problem. Please remove the code and test it, I think then its working.