1 files changed, 10 insertions, 0 deletions
diff --git a/src/core/web_contents_delegate_qt.cpp b/src/core/web_contents_delegate_qt.cpp
index a6e1fb438..1121714eb 100644
--- a/src/core/web_contents_delegate_qt.cpp
+++ b/src/core/web_contents_delegate_qt.cpp
@@ -197,6 +197,16 @@ void WebContentsDelegateQt::DidStartNavigation(content::NavigationHandle *naviga
     if (!navigation_handle->IsInMainFrame())
         return;
 
+    // Suppress extra loadStarted signal for data URL with specified base URL.
+    if (navigation_handle->GetURL().SchemeIs(url::kDataScheme)) {
+        content::NavigationEntry *pending_entry = navigation_handle->GetWebContents()->GetController().GetPendingEntry();
+
+        if (pending_entry && !pending_entry->GetBaseURLForDataURL().is_empty() &&
+                navigation_handle->GetURL() == pending_entry->GetURL()) {
+            return;
+        }
+    }
+
     // Error-pages are not reported as separate started navigations.
     Q_ASSERT(!navigation_handle->IsErrorPage());