Add content-type to responses

* fixes bug 928055

Change-Id: Id86a9b3361d27493ed5ef175462aa1d4c1001bf4

1 files changed, 6 insertions, 3 deletions

diff --git a/keystone/common/wsgi.py b/keystone/common/wsgi.py
index 34caec2c..b9105264 100644
--- a/keystone/common/wsgi.py
+++ b/keystone/common/wsgi.py
@@ -177,10 +177,13 @@ class Application(BaseApplication):
         elif isinstance(result, webob.exc.WSGIHTTPException):
             return result
 
-        return self._serialize(result)
+        response = webob.Response()
+        self._serialize(response, result)
+        return response
 
-    def _serialize(self, result):
-        return json.dumps(result, cls=utils.SmarterEncoder)
+    def _serialize(self, response, result):
+        response.content_type = 'application/json'
+        response.body = json.dumps(result, cls=utils.SmarterEncoder)
 
     def _normalize_arg(self, arg):
         return str(arg).replace(':', '_').replace('-', '_')