Freezing an object doesn't freeze it's children, and thus it's still technically mutable. I think using deep-freeze (https://github.com/substack/deep-freeze htt

Freezing an object doesn't freeze it's children, and thus it's still technically mutable. I think using deep-freeze (https://github.com/substack/deep-freeze https://github.com/substack/deep-freeze) might work.