Proxy Error

The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/h06279-nos-hydrographic-survey-1937-12-31/resource/9eddd1e6-ab04-4d72-992a-7f6671686edf.

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.