I have this scenario :

a) I create dinamically a contentPane widget in my applicazion using the setHref(url) method
( the URL is a page with the FORM HTML inside )
b) If with the firebug inspector I analize the contentpane, I see that the tag html <FORM...> </FORM> are deleted from the content.

So that If I submit the form inside the contenpane...no work because there aren't the html <form> </form>