Passing emscripten::val in signal/slot

ToreB

Modified the QThread documentation example so that the Worker::resultReady() signal passes a value of type emscripten::val instead of QString:

qRegisterMetaType<emscripten::val>();
connect(worker, &Worker::resultReady, this, &Controller::handleResults);

void Worker::doWork(const QString &parameter)
{
    qInfo() << "Worker::doWork()" << QThread::currentThread();
    emit resultReady(emscripten::val((parameter + "bar").toStdString()));
}

void Controller::handleResults(const emscripten::val &result)
{
    qInfo() << "Result of operation:" << QString::fromStdString(result.as<std::string>()) << QThread::currentThread();
}

Running in Chrome, with sharedArrayBuffer enabled, this fails:

Is there a way I can have a QThread web worker create a new JavaScript object and pass it on to the main thread ?

Qt 6.4 (-feature-thread) - emscripten 3.1.16