Upgrade structuredClone options object with skipNotSerializable to avoid cloning exceptions

[Juraj-Masiar]

What problem are you trying to solve?

Practically, I want to replace JSON.parse(JSON.stringify(obj)) with structuredClone(obj), but there is a big difference in behavior - the exception the structuredClone throws when it finds anything that can't be serialized, for example a function.
Example:

structuredClone({a() {}})

What solutions exist today?

Catching the exception doesn't help at all, because you still need a clone, so you need to clean the object first, which is likely much more work than the original JSON solution.

How would you solve it?

By providing a new switch, for example skipNotSerializable.
This would cause cloning algorithm to ignore properties that can't be cloned while still returning a clone of the rest of the object.

Anything else?

MDN:
https://developer.mozilla.org/en-US/docs/Web/API/structuredClone#options
Review of structured clone algorithms:
tc39/ecma262#2555