Use old method to find current URL in Qt < 4.8.0

src/CurrentUrl.cpp

@@ -6,8 +6,24 @@ CurrentUrl::CurrentUrl(WebPageManager *manager, QStringList &arguments, QObject
 }
 
 void CurrentUrl::start() {
+#if QT_VERSION >= QT_VERSION_CHECK(4, 8, 0)
   QStringList arguments;
   QVariant result = page()->invokeCapybaraFunction("currentUrl", arguments);
   QString url = result.toString();
   emit finished(new Response(true, url));
+#else
+  QUrl humanUrl = wasRedirectedAndNotModifiedByJavascript() ?
+    page()->currentFrame()->url() : page()->currentFrame()->requestedUrl();
+  QByteArray encodedBytes = humanUrl.toEncoded();
+  emit finished(new Response(true, encodedBytes));
 }
+
+bool CurrentUrl::wasRegularLoad() {
+  return page()->currentFrame()->url() == page()->currentFrame()->requestedUrl();
+}
+
+bool CurrentUrl::wasRedirectedAndNotModifiedByJavascript() {
+  return !wasRegularLoad() && page()->currentFrame()->url() == page()->history()->currentItem().url();
+#endif
+}
+

src/CurrentUrl.h

@@ -6,5 +6,11 @@ class CurrentUrl : public SocketCommand {
   public:
     CurrentUrl(WebPageManager *, QStringList &arguments, QObject *parent = 0);
     virtual void start();
+#if QT_VERSION < QT_VERSION_CHECK(4, 8, 0)
+
+    private:
+      bool wasRegularLoad();
+      bool wasRedirectedAndNotModifiedByJavascript();
+#endif
 };
 

src/WebPageManager.cpp

@@ -100,6 +100,7 @@ void WebPageManager::reset() {
   m_pages.first()->deleteLater();
   m_pages.clear();
   createPage(this)->setFocus();
+  currentPage()->currentFrame()->setUrl(QUrl("about:blank"));
 }
 
 NetworkCookieJar *WebPageManager::cookieJar() {