I dont believe this can be done, but is it possible to alter the content of an iframe that is rendered via a src.

The 3rd party compiled ASP.Net control (Telerik RadEditor .Net 2 version) I use has an iframe in part of its rendered code and does not contain a doctype and it is causing problems in IE8 with certain elements.

As it is compiled, I can not add it in the source. I was wondering if it is possible to add it in another way?

I have tried multiple things in jquery such as:

$(element).html().prepend("doc type here");

$(element).html("doctype here" + $(element).html()); 

and all other kinds of dodgy work.