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

runtime/observatory/lib/src/app/application.dart

Index: runtime/observatory/lib/src/app/application.dart
diff --git a/runtime/observatory/lib/src/app/application.dart b/runtime/observatory/lib/src/app/application.dart
index a76823276e0f34b0996428b57188e5bbb7b56bc4..067d84995161f8bfb51fdd8ae5959c533efd38da 100644
--- a/runtime/observatory/lib/src/app/application.dart
+++ b/runtime/observatory/lib/src/app/application.dart
@@ -111,6 +111,7 @@ class ObservatoryApplication extends Observable {
     _pageRegistry.add(new AllocationProfilerPage(this));
     _pageRegistry.add(new HeapMapPage(this));
     _pageRegistry.add(new VMConnectPage(this));
+    _pageRegistry.add(new IsolateReconnectPage(this));
     _pageRegistry.add(new ErrorViewPage(this));
     _pageRegistry.add(new MetricsPage(this));
     // Note that ErrorPage must be the last entry in the list as it is
@@ -128,7 +129,7 @@ class ObservatoryApplication extends Observable {
     if (exception.kind == 'NetworkException') {
       // Got a network exception, visit the vm-connect page.
       this.vm = null;
-      locationManager.go(locationManager.makeLink('/vm-connect/'));
+      locationManager.go(locationManager.makeLink('/vm-connect'));
     } else {
       _visit(Uri.parse('error/'), null);
     }