Fixed exception in server.

app/server/server.js

@@ -35,22 +35,24 @@ function checkUsersPR() {
     var connections = Meteor.server.stream_server.open_sockets;
     _.each(connections,function(connection){
         // named subscriptions
-        var subs = connection._meteorSession._namedSubs;
-        //var ip = connection.remoteAddress;
-        var used_subs = [];
-        for(var sub in subs){
-            var mySubName = subs[sub]._name;
-
-            if(subs[sub]._params.length>0){
-                mySubName += subs[sub]._params[0];  // assume one id parameter for now
-            }
+        if (connection._meteorSession !== undefined) {
+            var subs = connection._meteorSession._namedSubs;
+            //var ip = connection.remoteAddress;
+            var used_subs = [];
+            for (var sub in subs) {
+                var mySubName = subs[sub]._name;
+
+                if (subs[sub]._params.length > 0) {
+                    mySubName += subs[sub]._params[0];  // assume one id parameter for now
+                }
 
-            if (used_subs.indexOf(mySubName) === -1) {
-                used_subs.push(mySubName);
-                if(!output[mySubName]){
-                    output[mySubName] = 1;
-                }else{
-                    output[mySubName] += 1;
+                if (used_subs.indexOf(mySubName) === -1) {
+                    used_subs.push(mySubName);
+                    if (!output[mySubName]) {
+                        output[mySubName] = 1;
+                    } else {
+                        output[mySubName] += 1;
+                    }
                 }
             }
         }