I am trying to invoke a SOAP service using camel-http4. This service requires me to send the following header: Content-Type: application/soap+xml;charset=UTF-8;action=”ListBerichten”. I have to include the quotation marks, or otherwise the service will return a 400 code When I try this with a client like Postman or SoapUI or curl it works fine, but when I try it with Camel,