When attempting to navigate to a page for an isolate that doesn't exist, offer to

runtime/observatory/lib/src/elements/vm_connect.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library vm_connect_element;
 
 import 'dart:html';
 import 'package:polymer/polymer.dart';
 import 'observatory_element.dart';
 import 'package:observatory/app.dart';
@@ skipping 50 matching lines @@
   @published String chromiumAddress = 'localhost:9222';
   @observable ObservableList<WebSocketVMTarget> chromeTargets =
       new ObservableList<WebSocketVMTarget>();
 
   VMConnectElement.created() : super.created() {
     pollPeriod = new Duration(seconds: 1);
   }
 
   void _connect(WebSocketVMTarget target) {
     _connectToVM(app, target);
-    app.locationManager.go('#/vm');
+    app.locationManager.goForwardingParameters('/vm');
   }
 
   void onPoll() {
     _refreshTabs();
   }
 
   String _normalizeStandaloneAddress(String networkAddress) {
     if (networkAddress.startsWith('ws://')) {
       return networkAddress;
     }
@@ skipping 26 matching lines @@
           // This happens when a tab has devtools open!
           continue;
         }
         chromeTargets.add(targets[i]);
       }
     }).catchError((e) {
       chromeTargets.clear();
     });
   }
 }