newMux := &pathHandler{
		muxName:         m.name,
		pathToHandler:   map[string]http.Handler{},
		prefixHandlers:  []prefixHandler{},
		notFoundHandler: http.NotFoundHandler(),
	}
	if m.notFoundHandler != nil {
		newMux.notFoundHandler = m.notFoundHandler
	}
	for path, handler := range m.pathToHandler {
		newMux.pathToHandler[path] = handler
	}

	keys := sets.StringKeySet(m.prefixToHandler).List()