Ambiguous behaviour in payload factory when SOAP namespace contain tailing slash

[SanojPunchihewa]

Description

When using the following configuration in the payload factory, we can get the response with the SOAP envelope.

<payloadFactory media-type="xml">
    <format>
        <soap:Envelope xmlns:ns="http://www.viewstar.com/webservices/2002/11" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope">
            <soap:Header/>
            <soap:Body>
                <ns:Login>
                    <ns:loginId>123</ns:loginId>
                    <ns:loginMode>sso</ns:loginMode>
                </ns:Login>
            </soap:Body>
        </soap:Envelope>
    </format>
    <args/>
</payloadFactory>

However, when the SOAP namespace contains a tailing slash as follows, the SOAP envelope will get omitted.

<payloadFactory media-type="xml">
    <format>
        <soap:Envelope xmlns:ns="http://www.viewstar.com/webservices/2002/11" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
            <soap:Header/>
            <soap:Body>
                <ns:Login>
                    <ns:loginId>123</ns:loginId>
                    <ns:loginMode>sso</ns:loginMode>
                </ns:Login>
            </soap:Body>
        </soap:Envelope>
    </format>
    <args/>
</payloadFactory>