We would like to get a compressed response of a XMLA query. We have seen that the response is content-type: text/xml, so we enabled it in IIS. However, in the request header the only accept-encoding is "Identity", and not "Gzip". We ask to be able to edit the request header, or to get a compressed response. I attach two pictures: in the "XMLARequest.png" you can see the original request done by the XMLADataProvider. In the "GzippedRequest.png" you can see our request: we took the original one and just edited the accept-encoding field, and we got a compressed response.