Crash after inactivity or for other unknown reason

[BlathanAevon]

Eel version
0.16.0

Describe the bug
After some time of inactivity in the app it crashes (server stops) I thinks it needs something like tcpkeepalive or websocket switch or at least displaying a reason of why the app stopped

To Reproduce
Steps to reproduce the behavior:

1. Launch an App
2. Wait from 5 to 15 minutes
3. Try to refresh the page (F5)

[chrislilley13]

I have the same issue currently. I created my own custom logging and added a javascript keep alive message that is sent to python and python adds it to my logging but I get no errors or any other debug or info logged when the webpage crashes.