The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/h10561-nos-hydrographic-survey-cameron-louisiana-to-sabine-texas-1994-10-25/resource/bc5b2919-dbee-40c0-9ada-1afa4ed5c346.
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.