add 'ExtractHeader' method to object storage return types
diff --git a/openstack/objectstorage/v1/objects/requests.go b/openstack/objectstorage/v1/objects/requests.go
index f5ca296..56004b2 100644
--- a/openstack/objectstorage/v1/objects/requests.go
+++ b/openstack/objectstorage/v1/objects/requests.go
@@ -303,11 +303,12 @@
 		url += query
 	}
 
-	_, res.Err = perigee.Request("DELETE", url, perigee.Options{
+	resp, err := perigee.Request("DELETE", url, perigee.Options{
 		MoreHeaders: c.AuthenticatedHeaders(),
 		OkCodes:     []int{204},
 	})
-
+	res.Header = resp.HttpResponse.Header
+	res.Err = err
 	return res
 }
 
diff --git a/openstack/objectstorage/v1/objects/results.go b/openstack/objectstorage/v1/objects/results.go
index 97a6f91..7524c43 100644
--- a/openstack/objectstorage/v1/objects/results.go
+++ b/openstack/objectstorage/v1/objects/results.go
@@ -4,6 +4,7 @@
 	"fmt"
 	"io"
 	"io/ioutil"
+	"net/http"
 	"strings"
 
 	"github.com/rackspace/gophercloud"
@@ -97,13 +98,17 @@
 	}
 }
 
-type commonResult struct {
+type headerResult struct {
 	gophercloud.Result
 }
 
+func (hr headerResult) ExtractHeader() (http.Header, error) {
+	return hr.Header, hr.Err
+}
+
 // DownloadResult is a *http.Response that is returned from a call to the Download function.
 type DownloadResult struct {
-	commonResult
+	headerResult
 	Body io.Reader
 }
 
@@ -125,7 +130,7 @@
 
 // GetResult is a *http.Response that is returned from a call to the Get function.
 type GetResult struct {
-	commonResult
+	headerResult
 }
 
 // ExtractMetadata is a function that takes a GetResult (of type *http.Response)
@@ -146,20 +151,20 @@
 
 // CreateResult represents the result of a create operation.
 type CreateResult struct {
-	commonResult
+	headerResult
 }
 
 // UpdateResult represents the result of an update operation.
 type UpdateResult struct {
-	commonResult
+	headerResult
 }
 
 // DeleteResult represents the result of a delete operation.
 type DeleteResult struct {
-	gophercloud.ExtractErrResult
+	headerResult
 }
 
 // CopyResult represents the result of a copy operation.
 type CopyResult struct {
-	commonResult
+	headerResult
 }