upd

templates/rbmd/index.html

@@ -88,6 +88,7 @@
     var a, selected_node, deadNode, node2;
     ws.onopen = function() {ws.send(""); };
     ws.onmessage = function (evt) {
+      console.log(a);
       a = JSON.parse(evt.data);
       displayData(a);
     };