Twig syntax in json files

[pcoloma]

Hello,
I'm generating some json-ld using twig. I use a base description for images where I loop. (using for)
I have installed your package but I have some code error on the files. I'm not sure the scope of your script when mixing javascript and templating. I might be pushing things a bit too far.
See picture attached.
Many thanks,
Patrice.