Multi session bug

[stemlaur]

Thank you for the nice project.
When I try to open it on two tabs on normal and one on private mode I get the exception:

"status":500,"error":"Internal Server Error","exception":"com.vaadin.server.ServiceException","message":"org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'demoView': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Cannot remove from parent when the session is not locked. Furthermore, there is another locked session, indicating that the component might be about to be moved from one session to another.","path":"/"

Do you know what might be the cause ?

[gldiazcardenas]

This is something that I found: https://stackoverflow.com/questions/36625149/cannot-remove-from-parent-when-the-session-is-not-locked.

Make sure the components are all prototype scoped, include any subcomponent in the hierarchy.