basic http authentication

Hi, I used code from

but added it to Application controller to apply to the whole application class ApplicationController < ActionController::Base   protect_from_forgery

  before_filter :authenticate

  protected   def authenticate     puts 'authenticating.. '     authenticate_or_request_with_http_basic do |username, password|       username == "foo" && password == "bar"     end   end end

that does not seem to work... any ideas why?