***Note from Migration:***
Original Title was: Add Header list parameters for FeatureReader request like can be do it with HTTPCaller
For security reason I need to sent to ESRI header attributes (Referer) to identify the request as FME request and allow access to ArcGis services. What I need is easily available in the HTTP Caller Transformer with the Headers List. Can add this design utility to FeatureReader for next FME release.