I use google chrome, and when I open a new tab (and get the page with 8 icons representing the sites I most visit), one of them is for FindMyPast, but beneath the picture are the words, 'Search Ancestry and Genea...'
so I think even google chrome is giving a hint as to where to go to find anything now

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Anyway I opened FindMyPast and decided to have a look without signing in, just in case it worked better that way, going to a census search page and trying the address search, it seems that even if you have gone through the filters to get a county and entered a registration district (which it appeared to recognise), you get a filter box of street names - which don't have any connection to the district or county, but I see that there are several called, 'a caravan'. So maybe the caravans will be found - sorry I can't remember how far back this was mentioned, but I remember reading it.

Conclusion - still not working.
Lisa