Handle `DataCloneError`'s

[kungfooman]

Sometimes information is posted "cross-context" that can't be posted.

An easy check for what can be posted is using structuredClone.

Good examples:

structuredClone([1, 2, 3]);
structuredClone(new Uint32Array([1, 2, 3]))

Bad examples:

structuredClone(() => {});
structuredClone(class {});

So we just get this error: Uncaught DataCloneError: Failed to execute 'structuredClone' on 'Window': class {} could not be cloned.

Errors:

So this usually happens when a type is typeof SomeClass... because then the value is of course the class, which can't be cloned.