1 files changed, 8 insertions, 2 deletions
diff --git a/WebCore/loader/SubresourceLoader.cpp b/WebCore/loader/SubresourceLoader.cpp
index 7aef353..1e22fb1 100644
--- a/WebCore/loader/SubresourceLoader.cpp
+++ b/WebCore/loader/SubresourceLoader.cpp
@@ -248,14 +248,20 @@ void SubresourceLoader::didReceiveAuthenticationChallenge(const AuthenticationCh
 {
     RefPtr<SubresourceLoader> protect(this);
 
+    ASSERT(handle()->hasAuthenticationChallenge());
+
     if (m_client)
         m_client->didReceiveAuthenticationChallenge(this, challenge);
     
     // The SubResourceLoaderClient may have cancelled this ResourceLoader in response to the challenge.  
-    // If that's the case, don't call didReceiveAuthenticationChallenge
+    // If that's the case, don't call didReceiveAuthenticationChallenge.
     if (reachedTerminalState())
         return;
-        
+
+    // It may have also handled authentication on its own.
+    if (!handle()->hasAuthenticationChallenge())
+        return;
+
     ResourceLoader::didReceiveAuthenticationChallenge(challenge);
 }