Switching between routes increases detached elements count and memory usage

[esoty6]

Hi.
I've quite big app and when I'm navigating through routes at some point memory usage is very high. When I switch between two routes, memory usage increases (on chrome quick, on firefox a little slower). I made snapshot of detached elements and I can see that there are many duplicated elements some of them with very high node count and I think that this can cause the problem. I've tried adding :key to the router-view, clearing objects in onBeforeUnmout etc. but it didn't help.
Any ideas?