The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/w00184-nos-hydrographic-survey-2007-04-24/resource/8b1d0ca1-530d-45d8-8293-0e386b963dc0.
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.