I'm just making a few test on FastCGI cache and I see that the suggested .conf have this directive:
if ($query_string != "") {
set $skip_cache 1;
}
This will bypass the cache for every request containing a querystring. The problem is that all facebook links have a querystring inside, as AMP pages have ?amp=1, so is this directive really useful? is it safe to disable it?
Thanks!
Regards.