```ruby
module ActionController
  module UrlFor
    extend ActiveSupport::Concern

    include AbstractController::UrlFor

    def url_options
      options = {}
      if _routes.equal?(env["action_dispatch.routes"])
        options[:script_name] = request.script_name.dup
      end

      super.merge(options).reverse_merge(
        :host => request.host_with_port,
        :protocol => request.protocol,
        :_path_segments => request.symbolized_path_parameters
      )
    end
  end
end
```

Initialize @_routes if not defined yet, avoiding more warnings.
user
```ruby
module ActionController
  module UrlFor
    extend ActiveSupport::Concern

    include AbstractController::UrlFor

    def url_options
      options = {}
      @_routes ||= nil
      if _routes.equal?(env["action_dispatch.routes"])
        options[:script_name] = request.script_name.dup
      end

      super.merge(options).reverse_merge(
        :host => request.host_with_port,
        :protocol => request.protocol,
        :_path_segments => request.symbolized_path_parameters
      )
    end
  end
end
```
assistant