Rytis Alekna

Hi Michael, thanks for a such quick reply! I didn't know about that `_isBigNumber` property as it is not passed to serialized object (from source is see it's in prototype...

@F3n67u same solution because the problem is same.

I also miss mechanics on adding and loading Babel plugins into ExecJS context.

I'm pretty sure that .babelrc works only for babel-cli. Ruby-babel-transpiler works in isolated ExecJS environment and doesn't take .babelrc for configuration.