Key that turns a later target[key] = value into prototype pollution.
Survives `JSON.parse` as an ordinary own property, so copying entries
into a null-prototype object is not on its own enough to neutralise it.
Defined here, with the read path that strips it: the write path refuses it
only because this is what a read would do to it.
Key that turns a later
target[key] = valueinto prototype pollution.Survives `JSON.parse` as an ordinary own property, so copying entries into a null-prototype object is not on its own enough to neutralise it. Defined here, with the read path that strips it: the write path refuses it only because this is what a read would do to it.