MarcelWRLD

it should be '.toJson()'

Try using loadGameFile instead of saveGameFile

What is the full stack trace? Can you post it here?

I will look into your issues asap. (I haven't worked on this library as it requires a small refactor but I haven't had the motivation to work on a js...

It's gonna take a bit longer as I am restructuring the whole library and adding some more endpoints, sorry for that!