Artifacts stepping on each other

[leontalbot]

I would need to put more than one (u/window ...) per page, I guess this is possible... Though actually, I get to see the two windows at the same time (side by side), whatever routing I pick...

Also, when I make a change, I see the new resulting windows is added to the right, but the old one stays there (until I hit browser's refresh button)

@jumblerg : oh, i think the two artifacts are stepping on each other in the build process

Screenshots :

[leontalbot]

When I change smth in the code, I get :

[leontalbot]

Thanks for your time @jumblerg.
Bug of duplication at auto-reload is now gone with your new modification on responsive-layout-attributes branch.
Also, I understand hoplon/ui allows only one window per page. In case there are more then one, I confirm the last window will the one that will be rendered.
Cheers!