It's an upstream bug https://github.com/Pylons/webob/issues/233 fixed by https://github.com/Pylons/webob/pull/283 which is in WebOb>=1.7.0
It's an upstream bug https:/ /github. com/Pylons/ webob/issues/ 233 fixed by https:/ /github. com/Pylons/ webob/pull/ 283 which is in WebOb>=1.7.0