我的/ register在localhost上工作正常，但在heroku上给我一个503错误。这是错误信息。
Failed to load resource: the server responded with a status of 503 (Service Unavailable)
此处显示下方显示的下一条消息（不确定该消息是否重要或仅显示该应用正在中断）
Error: [ngRepeat:dupes] Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys. Repeater: error in registerError, Duplicate key: string: , Duplicate value: " "
最后这里是我的heroku日志
2015-12-02T13:44:53.965876+00:00 heroku[router]: at=info method=GET path="/modules/aggregated.css" host=www.fillinfor.me request_id=54d7e7b0-037e-4147-a55b-4d66a838b2d8 fwd="69.23.66.60" dyno=web.1 connect=0ms service=3ms status=304 bytes=127
2015-12-02T13:45:00.776609+00:00 heroku[router]: at=error code=H12 desc="Request timeout" method=POST path="/register" host=www.fillinfor.me request_id=359d5d68-a083-4349-b4f6-c0198259d0e3 fwd="69.23.66.60" dyno=web.1 connect=0ms service=30001ms status=503 bytes=0
更新：
这是注册页面网址http://www.fillinfor.me/?#!/join
这是在localhost http://localhost:3000/?#!/join