Dear whiskers: Currently we are using 502 BadGateway for ApplicationError and DeveloperError, which is not very appropriate I think, so I submit a PR to change this: 1. Use MultiStatus for ApplicationError 2. Use BadRequest for DeveloperError Any comments and suggestions are welcomed refs: 1. https://github.com/apache/openwhisk/issues/645#issuecomment-232534948 2. https://github.com/apache/openwhisk/pull/5047 Best Regards Jiang Pengcheng
