javascript - Ahoy Gem 导致没有路由匹配 [GET] "/undefined"

Question

在安装 Ahoy Gem 并添加
ahoy.trackAll();到我application.js的/undefined. 我试过卸载并重新创建数据库，但没有运气。

这是服务器日志。

SQL (0.3ms)  INSERT INTO `ahoy_events` (`id`, `visit_id`, `name`, `properties`, `time`) VALUES (x'438ffd6f7d4c4291876441fa2b5dcdf0', x'61671132b25b4f169a54ece65dc524b3', '$view', '{\"url\":\"http://localhost:3000/\",\"title\":\"Title\",\"page\":\"/\"}', '2015-08-10 20:12:57')
   (30.7ms)  COMMIT
Completed 200 OK in 161ms (Views: 0.2ms | ActiveRecord: 68.8ms)

Started GET "/undefined" for ::1 at 2015-08-10 16:12:59 -0400

ActionController::RoutingError (No route matches [GET] "/undefined"):