I try to retrieve some data from an internet site using 
Net::HTTP.new('host').post('path', 'data') but get the following error.  

Net::ProtoRetriableError: 302 Found
  from /usr/local/lib/ruby/1.6/net/protocol.rb:269:in `error!'
        from /usr/local/lib/ruby/1.6/net/http.rb:1089:in `value'
        from /usr/local/lib/ruby/1.6/net/http.rb:471:in `post'
        from (irb):12

Does anybody know what it means?

Thanks