I will try to force using JSON::PP and see if this changes something.
After adding line
BEGIN { $ENV{PERL_JSON_BACKEND} = 'JSON::PP' }
to both startup scripts backend changes to JSON::PP and on both virtual
hosts JSON::true is encoded to true. But I've found some info that XS is
way faster than PP, so it will be desirable to find out what why XS gives
wrong result.
I also tried loading XS .so file and then use JSON(); but result is just the same as when preloading in normal way.
Patryk
