Yes this is nw.js local storage is what I'm having problems with.
It does not import the old saves of variable data in local storage from versions I make with the v12 and older nw.js to any versions of the game I make with the new c2 and latest nw.js.
I get two seperate folders for each of the versions so I can play v1.2 of my game with older nw/c2 with all my saved data or play v1.2 of my game with the newest nw/c2 thats using a different save data.
neither versions affects the other in terms of webstorage saving.
My older nw.js saves go here:
My newer nw.js saves go here: