Hi,
had some errors too wanted to run some SOAP calls.
You could try to build your header by your own:
var header = "<grid-name xmlns="urn:realops.com:amp:workflow">GRID01</grid-name>" +
"<Security xmlns='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd'>" +
"<UsernameToken>" +
"<Username>TESTWSDL</:Username>" +
"<Password>password</Password>" +
" </UsernameToken>" +
"</Security>";
request.addRawHeader(header);
Regards,
Chris