diff --git a/frontend/src/app/main/data/viewer.cljs b/frontend/src/app/main/data/viewer.cljs
index 96d3f1bdd..550b5ddb9 100644
--- a/frontend/src/app/main/data/viewer.cljs
+++ b/frontend/src/app/main/data/viewer.cljs
@@ -137,7 +137,8 @@
                  (d/index-by :id)
                  (assoc state :comment-threads)))
           (on-error [{:keys [type] :as err}]
-            (if (= :authentication type)
+            (if (or (= :authentication type)
+                    (= :not-found type))
               (rx/empty)
               (rx/throw err)))]