We're loading the editor within the IFRAME for our ASP.Net Application. 

The issue is we're not able to preview the text with the preview button and also not able to insert the special characters.

The popup giving us the error as Object doesn't support this property or method "GetDocument" and Object doesn't support this property or method "PasteHTML"  respectively in Internet Explorer 9 alone.

 

Please let me know any solution to overcome this issue