We are using paid SaaS standard license. When I try to hit Backend service, I am getting below error
{ "fault": { "faultstring": "Duplicate Header \"Expires\"", "detail": { "errorcode": "protocol.http.DuplicateHeader" } } }
I checked the headers from trace and I don't see Expires header is added. I also tried adding AssignMessage policy to remove Expires header explicitly. That also didn't help. Please suggest
Is it possible the backend system is sending two or more response headers with the name "Expires" ?