refs #257, Add default dict to have right content-type

CHANGELOG.rst

@@ -5,7 +5,8 @@ ChangeLog
 master (unreleased)
 ===================
 
-Nothing here yet.
+- Validation View return the right content-type headers when the validation is okay (#257)
+- Fix The error 500 when the formidable object is not found on validation view (#257)
 
 Release 1.0.0 (2017-09-08)
 ==========================

demo/tests/test_integration.py

@@ -409,8 +409,9 @@ def test_validate_data_ok(self):
             parameters, format='json'
         )
         self.assertEqual(res.status_code, 204)
+        self.assertIn('application/json', str(res.serialize_headers()))
 
-    def test_validate_does_not_exist(self):
+    def test_formidable_does_not_exist(self):
         parameters = {
             'first_name': 'Guillaume',
             'last_name': 'Gérard',
@@ -438,6 +439,7 @@ def test_validate_data_ko(self):
         self.assertEqual(res.status_code, 400)
         errors = res.data
         self.assertIn('first_name', errors)
+        self.assertIn('application/json', str(res.serialize_headers()))
 
     def test_validate_with_mandatory_file(self):
         class WithFile(FormidableForm):

formidable/views.py

@@ -266,7 +266,7 @@ def get_form_class_kwargs(self):
         }
 
     def form_valid(self, form):
-        return Response(status=204)
+        return Response({}, status=204)
 
     def form_invalid(self, form):
         # TODO change response when UI ready