QWebView / Qt WebKit won't open some SSL pages; redirects not allowed?

Question

Clean install of Qt SDK 1.1.4 on Windows 7 with Visual C++ 2008 SP1; I\'m using Qt Creator. Why does this code not load some web pages?

#include 

        

Answer 1

You are probably getting SSL errors which you can handle in a slot. Although not the best final solution, you can use the slot to ignore all SSL errors. I did this by subclassing QWebView:

qwebview.h:

#ifndef WEBVIEW_H
#define WEBVIEW_H

#include 

class WebView : public QWebView
{
    Q_OBJECT

    public:
        WebView(QWidget *parent = 0);
    private slots:
        void handleSslErrors(QNetworkReply* reply, const QList &errors);
};

#endif // WEBVIEW_H

qwebview.cpp:

#include "webview.h"
#include 
#include 
#include 

WebView::WebView(QWidget *parent) :
    QWebView(parent)
{
    load(QUrl("https://gmail.com"));

    connect(page()->networkAccessManager(),
            SIGNAL(sslErrors(QNetworkReply*, const QList & )),
            this,
            SLOT(handleSslErrors(QNetworkReply*, const QList & )));  
}

void WebView::handleSslErrors(QNetworkReply* reply, const QList &errors)
{
    qDebug() << "handleSslErrors: ";
    foreach (QSslError e, errors)
    {
        qDebug() << "ssl error: " << e;
    }

    reply->ignoreSslErrors();
}

main.cpp"

#include 
#include "WebView.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    WebView w;
    w.show();
    return a.exec();
}

Running this should produce debug output like this:

handleSslErrors:  
ssl error:  "The host name did not match any of the valid hosts for this certificate" 
ssl error:  "No error" 
ssl error:  "No error" 
...

In your final program, you will of course want to handle SSL errors properly :)