
WebOb change https://github.com/Pylons/webob/pull/230 changed the way in which the error response body is formatted such that it's no longer a nested dict. So we have to handle both the old convention of an error message key to the response body error dict and the new way with just the error body dict. This was reported upstream: https://github.com/Pylons/webob/issues/235 But given this was apparently implemented as a long-overdue change in WebOb the behavior is not likely to change. Change-Id: If653a247d842786d2824b4b3a5c0cde1383ed7ab Closes-Bug: #1559072