Base a pagination.PageResult on gophercloud.Result.
diff --git a/openstack/objectstorage/v1/containers/results.go b/openstack/objectstorage/v1/containers/results.go
index 3a6d3be..ec3c1e0 100644
--- a/openstack/objectstorage/v1/containers/results.go
+++ b/openstack/objectstorage/v1/containers/results.go
@@ -67,7 +67,7 @@
// ExtractNames is a function that takes a ListResult and returns the containers' names.
func ExtractNames(page pagination.Page) ([]string, error) {
casted := page.(ContainerPage)
- ct := casted.Header.Get("Content-Type")
+ ct := casted.Headers.Get("Content-Type")
switch {
case strings.HasPrefix(ct, "application/json"):