The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/h02829-nos-hydrographic-survey/resource/ee1e9a70-3ba7-438f-9d0e-bc9a93419945.
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.