The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/8mf03-seacat-data/resource/5dca5b2b-70a0-48a7-902b-953b855fc783.
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.