rails 3.2 streaming data

问题:

apparently the render :text method with proc is not any longer available in rails 3.2 in order to stream data. I followed the instruction in the folowing

discussion

and tried to stream data with an iterator

class Streamer
attr_reader :url,:uri
def initialize(url)
  puts "there"
  @url = url
  @uri = URI.parse url
end
def each
  Net::HTTP.start(uri.host) do |http|
    resp = http.get(uri.path) do |str|
      puts  str
    end
  end
end
end

this print out the streamed data to the console, but the ultimate goal is streaming to the client so I change it to

 resp = http.get(uri.path) do |str|
      yield  str
 end

This code is not working. The request just does not reply with anything. I am running on webrock. So might it be possible that this approach is not working at all with webrick, or is there anything wrong with the code.

Help is appreciated. Regards, Phil