VaadinServlet statement is being attached at my views url

I noticed that after some time the urls of my views are becoming

http://localhost:8080/vaadinServlet/device instead of http://localhost:8080/device.
I don’t know if this behavior is related with the expiration of session because it shows up after seeing “Conection lost,trying to reconnect” message.

Despoina Kaz:
I noticed that after some time the urls of my views are becoming

http://localhost:8080/vaadinServlet/device instead of http://localhost:8080/device.
I don’t know if this behavior is related with the expiration of session because it shows up after seeing “Conection lost,trying to reconnect” message.

I have the same issue? Can someone solve this?