diff --git a/packages/common/error.js b/packages/common/error.js
index 0bc393a60019a7e0ff461ddd63218a139352e61b..36b7ed54ee00ceba70c854ca473b9fb0bfed5db2 100644
--- a/packages/common/error.js
+++ b/packages/common/error.js
@@ -3,9 +3,11 @@ import {i18n} from "./i18n";
 
 export const xhrError = (jqXHR, textStatus, errorThrown) => {
     if (textStatus !== "abort") {
+        // try to show hydra error text
         let body = jqXHR.responseJSON !== undefined && jqXHR.responseJSON["hydra:description"] !== undefined ?
             jqXHR.responseJSON["hydra:description"] : textStatus;
 
+        // if the server is not reachable at all
         if (jqXHR.status === 0) {
             body = i18n.t('error.connection-to-server-refused');
         }