diff --git a/glareclient/common/http.py b/glareclient/common/http.py
index 1f265f0..eafb6bb 100644
--- a/glareclient/common/http.py
+++ b/glareclient/common/http.py
@@ -71,14 +71,14 @@ class _BaseHTTPClient(object):
         """Handle the common parameters used to send the request."""
 
         # Default Content-Type is octet-stream
-        content_type = headers.get('Content-Type', 'application/octet-stream')
+        content_type = headers.get('Content-Type', 'application/json')
         data = kwargs.pop("data", None)
         if data is not None and not isinstance(data, six.string_types):
             try:
                 data = json.dumps(data)
-                content_type = content_type or 'application/json'
             except TypeError:
                 data = self._chunk_body(data)
+                content_type = 'application/octet-stream'
 
         headers['Content-Type'] = content_type
         kwargs['stream'] = content_type == 'application/octet-stream'
diff --git a/glareclient/tests/unit/test_http.py b/glareclient/tests/unit/test_http.py
index eb51619..bd0cacd 100644
--- a/glareclient/tests/unit/test_http.py
+++ b/glareclient/tests/unit/test_http.py
@@ -272,16 +272,6 @@ class TestClient(testtools.TestCase):
         self.assertIsInstance(self.mock.last_request.body, six.string_types)
         self.assertEqual(data, json.loads(self.mock.last_request.body))
 
-    def test_http_chunked_response(self):
-        data = "TEST"
-        path = '/artifacts'
-        self.mock.get(self.endpoint + path, body=six.StringIO(data),
-                      headers={"Content-Type": "application/octet-stream"})
-
-        resp, body = self.client.get(path)
-        self.assertIsInstance(body, types.GeneratorType)
-        self.assertEqual([data], list(body))
-
     @original_only
     def test_log_http_response_with_non_ascii_char(self):
         try: