QGraphicsView (or timer) do not update in wasm

#include <QApplication>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QTimer>
#include <QGraphicsItem>
#include <QGraphicsRectItem>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QGraphicsScene scene;
    QGraphicsView v{&scene};

    auto col = QColor::fromHslF(0.2, 0.6, 0.6, 1.);
    auto it = scene.addRect(QRectF(100, 200, 200, 100), col, col.lighter());
    it->setTransformOriginPoint(it->boundingRect().center());

    QTimer t;
    t.setInterval(8);
    t.connect(&t, &QTimer::timeout,
              [&] {
        it->setRotation(it->rotation() + 0.1);
    });
    t.start();
    v.showFullScreen();

    return a.exec();
}