handle undefined param in notebooklist

PR #2159 introduced a bug preventing the notebook list from drawing
14 years ago · d77e9a4eba
parent 8b34dfc405
commit d77e9a4eba
1 changed files with 4 additions and 1 deletions
--- a/IPython/frontend/html/notebook/static/js/notebooklist.js
+++ b/IPython/frontend/html/notebook/static/js/notebooklist.js
@ -106,7 +106,10 @@ var IPython = (function (IPython) {


    NotebookList.prototype.list_loaded = function (data, status, xhr, param) {
-        var message = param.msg || 'Notebook list empty.';
+        var message = 'Notebook list empty.';
+        if (param !== undefined && param.msg) {
+            var message = param.msg;
+        }
        var len = data.length;
        this.clear_list();