redirect_to_patch.rb

raise "Check #{__FILE__} and http://bit.ly/9IK52W to see if this hack is still needed." if Rails.version > "3.0.0"

class ActionController::Base
  private
  alias :_compute_redirect_to_location_original :_compute_redirect_to_location

  def _compute_redirect_to_location(options)
    case options
    when Proc
      _compute_redirect_to_location instance_eval(&options)
    else
      _compute_redirect_to_location_original options
    end
  end
end