Codeception/Codeception — pull request #691 by cebe (2013-11-21 09:15:40+00:00)
Title: Fixed Yii2 statusCode

We changed the default value to 200 and removed the possibility to set it to null.

See https://github.com/yiisoft/yii2/commit/f5219d24816c8b55aa757d37b7215905f3ee7073#commitcomment-4661711