Disable scrolling to left/right/up/down in Qwebengineview - qt

Question

I want my qwebengineview can't scroll to the left/right/up/down.
My situation is like this:
It was asked in Qt Fourm first, however I can't find a solution for this.
QT Fourm link: link
Please see the minimum code example code below. It's not the same website but can also show this problem.
I'm using Mac Os 10.15 and Qt 5.13.1.
Update
mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QWebEngineView>
QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(QWidget *parent = nullptr);
~MainWindow();
private:
Ui::MainWindow *ui;
QWebEngineView* m_pWebView;
};
#endif // MAINWINDOW_H
mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
this->setFixedSize(920,580);
m_pWebView = new QWebEngineView(this);
// Set WebView Size
m_pWebView->setGeometry(0,0,920,580);
// Disable Right Click
m_pWebView->setContextMenuPolicy(Qt::NoContextMenu);
m_pWebView->load(QUrl("https://clash.razord.top/#/proxies"));
}
MainWindow::~MainWindow()
{
delete ui;
}
main.cpp
#include "mainwindow.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}