bug 73964, unable to log in to compuserve, r=valeski, sr=darin

netwerk/protocol/http/src/nsHTTPResponseListener.cpp

@@ -478,10 +478,11 @@ nsHTTPServerListener::OnDataAvailable(nsIRequest *request,
                         mResponseDataListener,
                         request,
                         getter_AddRefs(converterListener));
-                if (NS_FAILED(rv)) return rv;
+                if (NS_SUCCEEDED(rv)) {
                   mResponseDataListener = converterListener;
                 }
             }
+        }
 
         if (!mChunkHeaderChecked) {
             mChunkHeaderChecked = PR_TRUE;