proxy error when submitting http url to pim

[cchou]

Submitted by Rebecca at LC.

When submitting a http url, http://memory.loc.gov/mbrs/trmp/4109.mpg, to PIM for description, a proxy error 502 is returned instead of a premis document.

Net::HTTPFatalError at /describe/results
502 "Proxy Error"
file: http.rb location: error! line: 2105