--- a/rdf/base/nsRDFXMLDataSource.cpp
+++ b/rdf/base/nsRDFXMLDataSource.cpp
@@ -947,22 +947,22 @@ RDFXMLDataSourceImpl::Refresh(bool aBloc
         if (NS_FAILED(rv)) return rv;
     }
     else {
         // Null LoadGroup ?
         nsCOMPtr<nsIChannel> channel;
         rv = NS_NewChannel(getter_AddRefs(channel),
                            mURL,
                            nsContentUtils::GetSystemPrincipal(),
-                           nsILoadInfo::SEC_NORMAL,
+                           nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
                            nsIContentPolicy::TYPE_OTHER,
                            nullptr, // aLoadGroup
                            this);   // aCallbacks
         NS_ENSURE_SUCCESS(rv, rv);
-        rv = channel->AsyncOpen(this, nullptr);
+        rv = channel->AsyncOpen2(this);
         NS_ENSURE_SUCCESS(rv, rv);
 
         // So we don't try to issue two asynchronous loads at once.
         mLoadState = eLoadState_Pending;
     }
 
     return NS_OK;
 }