Allow deferring QWebEngineCertificateError handling

Introduce defer() method for halting URL load on certificate errors,
and methods for rejecting and ignoring these errors subsequently
in async manner.

[ChangeLog][QtWebEngineWidgets][QWebEngineCertificateError] New
methods for asynchronous decision on certificate error during load.

Fixes: QTBUG-55110
Change-Id: Ib23eb568862ccc360208922a6a581f8e7edc4a7e
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

1 files changed, 5 insertions, 3 deletions

diff --git a/src/webenginewidgets/api/qwebenginepage.cpp b/src/webenginewidgets/api/qwebenginepage.cpp
index c9e9177b7..b22d47916 100644
--- a/src/webenginewidgets/api/qwebenginepage.cpp
+++ b/src/webenginewidgets/api/qwebenginepage.cpp
@@ -294,6 +294,7 @@ void QWebEnginePagePrivate::loadStarted(const QUrl &provisionalUrl, bool isError
         return;
 
     isLoading = true;
+    m_certificateErrorControllers.clear();
     QTimer::singleShot(0, q, &QWebEnginePage::loadStarted);
 }
 
@@ -1715,10 +1716,11 @@ void QWebEnginePagePrivate::allowCertificateError(const QSharedPointer<Certifica
     Q_Q(QWebEnginePage);
     bool accepted = false;
 
-    QWebEngineCertificateError error(controller->error(), controller->url(), controller->overridable() && !controller->strictEnforcement(), controller->errorString());
+    QWebEngineCertificateError error(controller);
     accepted = q->certificateError(error);
-
-    if (error.isOverridable())
+    if (error.deferred() && !error.answered())
+        m_certificateErrorControllers.append(controller);
+    else if (!error.answered() && error.isOverridable())
         controller->accept(accepted);
 }