class ActionDispatch::Journey::Router

def recognize(rails_req)
  find_routes(rails_req) do |match, parameters, route|
    unless route.path.anchored
      rails_req.script_name = match.to_s
      rails_req.path_info   = match.post_match
      rails_req.path_info   = "/" + rails_req.path_info unless rails_req.path_info.start_with? "/"
    end
    parameters = route.defaults.merge parameters
    yield(route, parameters)
  end
end