rec := reqRec.rec
				// HTTP request used to call the handler.
				req := reqRec.req
				// HTTP request type string for V4/V2 requests.
				reqType := reqRec.reqType

				// Clone so we don't retain values we do not want.
				req.Header = req.Header.Clone()

				// introduce faults in the request.
				// deliberately introducing the invalid value to be able to assert the response with the expected error response.