The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/delayed-xbt-and-ctd-data-submitted-by-institut-francais-de-recherche-pour-lexploitation-de-la-m2/resource/65278b88-197c-4f05-8b79-2d88458bbbf8.
Reason: DNS lookup failure for: os-data-catalog.ngdc.noaa.gov
Additionally, a 502 Bad Gateway error was encountered while trying to use an ErrorDocument to handle the request.