js backend: fixed array concatenate
js backend: fixed array concatenate

pombredanne/Rusthon,secureosv/pythia,rusthon/Rusthon,secureosv/pythia,pombredanne/Rusthon,rusthon/Rusthon,rusthon/Rusthon,pombredanne/Rusthon,secureosv/pythia,secureosv/pythia,rusthon/Rusthon,pombredanne/Rusthon,pombredanne/Rusthon,rusthon/Rusthon,secureosv/pythia