optimize plugin not include some packages?

[Matija Kop]

I have problem with serverless optimize plugin,

"errorMessage":"package.json does not exist at /var/task/_optimize/xxx/src/.build/node_modules/bcrypt/package.json"

Whay optimize plugin not include this package??

But when I remove optimize plugin, work fine....

[Vali Draganescu]

You need to add json in the extensions

custom: optimize: extensions: ['.json']