1 files changed, 8 insertions, 4 deletions
diff --git a/src/rz_core.js b/src/rz_core.js
index b2643f09..0eeb3b78 100644
--- a/src/rz_core.js
+++ b/src/rz_core.js
@@ -62,11 +62,15 @@ var initDrawingArea = function () {
         }
     }
 
-    var user_id = $('#user_id').text();
-    console.log('found user ID: \'' + user_id + '\'');
-
     graph = new model_graph.Graph();
-    graph.set_user(user);
+
+    var user_id = $('#user_id'),
+        user = user_id.text();
+
+    if (user_id.length > 0) {
+        console.log('found user ID: \'' + user + '\'');
+        graph.set_user(user);
+    }
 
     var el = document.body;
     vis = d3.select(el).append("svg:svg")