How to add/overwrite a HTTP header using THTTPReqResp?
问题 I want to approach the Exchange EWS webservice and handle XML SOAP composition (request) and parsing (response) myself. Therefore, THTPPRIO seems a bit overkill. I'm trying THTTPReqResp, but I'm stuck here: The web service does not follow the specs and expects a Content-Type: text/xml; charset=utf-8 instead of Content-Type: text/xml; charset="utf-8" How can I add/overwrite a header using THTTPReqResp? Here's the code so far: HTTPReqResp1.SoapAction := '"http://schemas.microsoft.com/exchange