Intermittently App crash

[isuhendro]

The sample works well, but not long. It will crash eventually with below error in the log file

GET path="/ws" host=jubilee-gate.herokuapp.com request_id=78bd9e19-d7e0-4497-956e-6ac1d61a4f44 fwd="219.74.244.91" dyno= connect= service= status=503 bytes= protocol=http
2019-06-23T14:00:04.813488+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=

Would you mind to give some tips? Thank you in advance.

[freeformz]

Some of the deps were really old. If you upgrade does it still happen?

[isuhendro]

Thank you @freeformz for your suggestion, actually, I resolved it after upgrade to dyno hobby

[freeformz]

Thanks!

[isuhendro]

@freeformz , I found that this issue is caused whenever any client disconnect WebSocket connect. I run window.box.close() in JavaScript console of http://go-websocket-chat-demo.herokuapp.com/ and got below error