Changes and windows triggered from one browser show on another

Vaadin 6 / 7 / 8 Framework UI
1

Hi,

I’m having a very strange problem with my application. I haven’t been able to create a test case to show, so I understand it will be very hard to provide a definite answer, but maybe anyone can give me a suggestion on what could be the cause or where to look.

I have an application object which contains a main window.

If I access the application from 2 browsers on 2 different machines, sometimes after an action that adds a component to the main window’s layout or adds a window is performed in machine 1, the change or window will be visible on machine 2.

I have tried showing on screen the object references for both the app object and the main window, and they show different references on each machine.

I have checked the application object and the main window, and there are no static objects that could be shared among instances (it is my understanding that each browser should have a different instance of the application).

I hope anyone can give me a few pointers on what could be causing this.

Thanks.

2

I think I’ve ran into this as well occasionally. I’ve just dismissed it as “can’t happen, I must’ve done/seen something wrong” type of thing.

I’ve yet to find time to investigate further, but I would appreciate any vague guesses/hints even.