 This happens with responses with code 500 and 422 (and maybe others). Steps to reproduce: 1. Go to <http://petstore.swagger.io/> 2. Place an order for a pet (`POST /store/order`) with the following request body ```json { "id": 0, "petId": 12321312312312312, "quantity": -1, "shipDate": "asdasdasd", "status": "asdasdas", "complete": 12312312 } ``` - swagger-ui version: 3.0.8 - a swagger file reproducing the issue: <http://petstore.swagger.io/v2/swagger.json> Probably related to #3021.