3.3.3.o includenamespaceprefixes attribute of submission element Acura 2005 blue 3.3.3.o includenamespaceprefixes attribute of submission element When you activate the Submit Now submit control, the page must be replaced by the form data. You must see the value '<my:car xmlns:my="http://www.fakenamespace.org">' in the form data. You must NOT see any other namespace declarations. Submit Now