The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/h12382-nos-hydrographic-survey-florida-keys-national-marine-sanctuary-florida-2011-11-15/resource/2bde60c8-69b1-4c4a-8600-be8bfc115c20.
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.