QJsonDocument::fromJson doesn't check the length of the string to see if it has parsed everything

If you try parsing a malformed Json like this one :

{key1 : "ok", key2 : {key3: "ok"}}, key4 : "outsideOfMainJsonObject"}

QJsonDocument will parse :

{key1 : "ok", key2 : {key3: "ok"}}

and return without error but in reality the json is malformed