Signal QNetworkReply::finished not sent when using QNetworkAccessManager in a thread on webassembly

../Src/configure -qt-host-path ../gcc_64 -platform wasm-emscripten -submodules qtbase -no-dbus -prefix $PWD/qtbase -feature-thread -opengles3 -c++std 20 -static -optimize-size
cmake --build . -t qtbase

#include <QCoreApplication>
#include <QThread>
#include <QTimer>
#include <QtNetwork/QNetworkAccessManager>
#include <QtNetwork/QNetworkReply>

int main(int argc, char *argv[])
{
//////////////////////// works ////////////////////////
//    qDebug() << "Threaded without a thread";
//    QCoreApplication a(argc, argv);
//    const auto* a_ptr = &a;
//    QNetworkAccessManager nam;
//    QNetworkReply* reply = nam.get(QNetworkRequest(QUrl("https://myurl.blah/file.dat")));
//    QObject::connect(reply, &QNetworkReply::finished, [reply]() {
//        const auto url = reply->url();
//        const auto error = reply->error();
//        if (error == QNetworkReply::NoError) {
//            qDebug() << "Loading of " << url << " successful.";
//        } else {
//            qDebug() << "Loading of " << url << " failed: " << error;
//        }
//        reply->deleteLater();
//    });
//    return a.exec();

//////////////////////// never prints "Na Bumm!" ////////////////////////
    qDebug() << "Threaded with a thread";
    QCoreApplication a(argc, argv);
    const auto* a_ptr = &a;
    QThread thread;
    QNetworkAccessManager nam;
    const auto& nam_ptr = &nam;
    nam.moveToThread(&thread);
    QTimer::singleShot(0, &nam, [nam_ptr]() {
        QNetworkReply* reply = nam_ptr->get(QNetworkRequest(QUrl("https://myurl.blah/file.dat")));
        QObject::connect(reply, &QNetworkReply::finished, [reply]() {
            qDebug() << "Na bumm!";
            const auto url = reply->url();
            const auto error = reply->error();
            if (error == QNetworkReply::NoError) {
                qDebug() << "Loading of " << url << " successful.";
            } else {
                qDebug() << "Loading of " << url << " failed: " << error;
            }
            reply->deleteLater();
        });
    });

    thread.start();

    return a.exec();
}

cmake_minimum_required(VERSION 3.14)

project(qt_test LANGUAGES CXX)

set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Core Network)
find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Core Network)

add_executable(qt_test
  main.cpp
)
target_link_libraries(qt_test Qt${QT_VERSION_MAJOR}::Core Qt6::Network)

install(TARGETS qt_test
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})