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by austinjp 1249 days ago
Nice but still some caveats, from [0]:

Prototypes. If you use structuredClone() with a class instance, you’ll get a plain object as the return value, as structured cloning discards the object’s prototype chain.

Functions. If your object contains functions, they will be quietly discarded.

Non-cloneables. Some values are not structured cloneable, most notably Error and DOM nodes. It will cause structuredClone() to throw.

Web workers are patchy too.

[0] https://web.dev/structured-clone/