Update static/canvas.js

static/canvas.js

@@ -67,9 +67,9 @@ function addNode() {
                 stroke: 'black',
                 strokeWidth: 2
             });
-            layer.add(line);
+           layer.add(line);
             connections.push({
-                from: selectedNode.data.id36
+                from: selectedNode.data.id,
                 to: node.data.id
             });
             selectedNode = null;