1 files changed, 11 insertions, 0 deletions
diff --git a/src/core/web_contents_delegate_qt.cpp b/src/core/web_contents_delegate_qt.cpp
index aae7f4a43..7f3ced8aa 100644
--- a/src/core/web_contents_delegate_qt.cpp
+++ b/src/core/web_contents_delegate_qt.cpp
@@ -527,6 +527,17 @@ void WebContentsDelegateQt::ActivateContents(content::WebContents* contents)
         contents->Focus();
 }
 
+void WebContentsDelegateQt::RenderViewHostChanged(content::RenderViewHost *old_host, content::RenderViewHost *new_host)
+{
+    Q_ASSERT(new_host);
+
+    // The old RVH can be nullptr if it was shut down.
+    if (!old_host)
+        return;
+
+    new_host->UpdateWebkitPreferences(old_host->GetWebkitPreferences());
+}
+
 void WebContentsDelegateQt::RequestToLockMouse(content::WebContents *web_contents, bool user_gesture, bool last_unlocked_by_target)
 {
     Q_UNUSED(user_gesture);