QWebView setUrl memory leak

[sinjohr]

The virtual memory usage of my simple qtwebkit application increases forever.
My qtwebkit app simply loops webView->setUrl(QUrl(QStringLiteral("about:blank")), as follows,

    QWebView* webView = new QWebView(centralWidget);
	webView->setObjectName(QStringLiteral("webView"));
	webView->setGeometry(QRect(0, 0, width, height));

    while (true)
    {
        webView->setUrl(QUrl(QStringLiteral("about:blank")));
        msleep(1); // sleep 1 millisecond
    }

I think the memory usage should be stable in this case, however, the result is not.
What's the matter? some kind of clearing is required to use setUrl() multiple times?

• Qt version : 5.4.1
• OS : Ubuntu 14.04 LTS

[ThatDud3]

I think this is by design ... (if it is not a bug)
http://forum.qt.io/topic/10832/memory-size-increases-per-page-load/4
...If you read the description of this classs (found via that link), you find that they INTENTIONALLY designed the QWebView / QGraphicsWebView to grow in memory indefinitely until the OS reclaims the resources!

[sinjohr]

@ThatDud3 However, my test code only loads "about:blank", I think, which has no resource to cache. I am not still understanding why this code incurs infinite virtual memory leak...