Function detachFromUserPrototypes

lib/internal/crypto/webcrypto.js:783–799

(value)

// Detach internal JSON values from the current global's mutable prototypes to
// approximate those fresh-realm semantics without creating a new realm.
function detachFromUserPrototypes(value) {
  if (value === null || typeof value !== 'object')
    return;

  ObjectSetPrototypeOf(value, null);

  if (ArrayIsArray(value)) {
    setOwnProperty(value, SymbolIterator, safeArrayIterator);
    for (let n = 0; n < value.length; n++)
      detachFromUserPrototypes(value[n]);
    return;
  }

  const keys = ObjectKeys(value);
  for (let n = 0; n < keys.length; n++)
    detachFromUserPrototypes(value[keys[n]]);
}

// Parse wrapped JWK bytes according to WebCrypto's "parse a JWK" procedure.
function parseJwk(data) {