clear cookies in Qt4

[mero]

Hello,

Is function removeCookies safe ?
"deleteLayer" and "new" will not crash app ?

construct ....
{
Auth::Auth()
{
    accessManager = new QNetworkAccessManager();
    cookieJar = new QNetworkCookieJar();
    accessManager->setCookieJar(cookieJar);
....
}
 
void Auth::removeAllCookies()
{
    cookieJar->deleteLater();
    cookieJar = new QNetworkCookieJar();
    accessManager->setCookieJar(cookieJar);
...

construct ....
{
Auth::Auth()
{
    accessManager = new QNetworkAccessManager();
    cookieJar = new QNetworkCookieJar();
    accessManager->setCookieJar(cookieJar);
....
}

void Auth::removeAllCookies()
{
    cookieJar->deleteLater();
    cookieJar = new QNetworkCookieJar();
    accessManager->setCookieJar(cookieJar);
...

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