Final Observatory 1.5 fixes

runtime/bin/vmservice/client/lib/service_html.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 service_html;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:html';
 
@@ skipping 144 matching lines @@
     assert(completer != null);
     _pendingRequests.remove(id);
     completer.complete(data);
   }
 
   Future<String> getString(String path) {
     var idString = '$_requestSerial';
     Map message = {};
     message['id'] = idString;
     message['method'] = 'observatoryQuery';
-    message['query'] = '/$path';
+    message['query'] = '$path';
     _requestSerial++;
     var completer = new Completer();
     _pendingRequests[idString] = completer;
     window.parent.postMessage(JSON.encode(message), '*');
     return completer.future;
   }
 }