I can only compare to the USN carriers at that time.
Lexington and Saratoga had wind screen barriers all around the deck that folded from vertical to about 20 degrees from horizontal.. They were a combination of webbing and netting. They were painted to match Deck Blue. They weren't crash barriers, but might save someone walking backwards off the deck.
Same with wind barriers fore and aft.
The Yorktowns had a similar system, but the nets were fixed horizontal. Also painted Deck Blue.