I was hoping someone else would have asked about this because I'm not sure I can describe what's happening in a way that makes sense. But since yesterday something weird has been going on with Mumsnet when I use the back button to return to active.
If I'm on Mumsnet, then I leave for a bit with the active page showing, I generally refresh the page when I come back so I can see the current crop of active threads. If I pick one to read, then use the back button on my browser to return to active, I see the old list of threads from before I refreshed. So I have to refresh again, but then I see the new up-to-date list of active threads and so lose the list of active threads I was browsing, because it's moved on. I remember that active always refreshed with use of the back button after the site was upgraded, and it annoyed me and evidently some other people because it was mentioned in site stuff. This is not the same thing but has the same effect.
I am using Chrome on an Android tablet. I never sign in unless I'm posting n case that makes a difference, and I haven't tested to see if it happens now that I am signed in. Is it happening for anyone else?