The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/usf-bass-20181129t15001/resource/739f9fa3-0ce6-44b6-bef6-0763d848a4e7.
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.