11.9.8.a serialization as application/x-www-form-urlencoded René 11.9.8.a serialization as application/x-www-form-urlencoded When you activate the Submit Data submit control the page must be replaced by the form data. The data must contain the value "Ren%C3%A9". The form data must be in application/x-www-form-urlencoded format according to the W3C specification at this link: XForms 1.1 specification Submit Data