QWebKit causes Qt application to freeze and become non-responsive

[anshah]

I'm trying to load a url using QWebView on Linux Ubuntu 18.04 and RHEL 8.

m_webView->page()->mainFrame()->load(m_url);
m_webView->resize(1024, 750);
m_webView->show();

What I'm seeing is that while loading the url the entire application freezes. The UI process is using up 100% of the CPU as we see in the top function.

I was thinking to add a timer and stop from loading since I do not yet see that loading has finished in the slot:

connect(m_webView, SIGNAL(loadFinished(bool)),
        this,       SLOT(onLoadFinished(bool)));

Basically QWebView is causing the entire application to become non-responsive. This occurs intermittently.

Is there any way to stop QWebView from loading the url so that the application can recover?
Should I have QWebView in its own thread so it doesn't affect the rest of the application?