Upgrade your docker-selenium
Client closed the websocket connection (safe to ignore)
Nginx does not handle websocket requests. Configure nginx proxy for websockets.
Set larger socket timeout (or 0 to set no timeout).
Upgrade your nanohttpd
It takes too long time for the JVM to find enough entropy for secure connection. Use this jvm option: '-Djava.security.egd=file:/dev/./urandom'.
Here is a animation for the life cycle. http://tcp.cs.st-andrews.ac.uk/index.shtml?page=connection_lifecycle
You have a different solution? A short tip here would help you and many other users who saw this issue last week.
- No stack-trace found.