Allow HTTP response without reason phrase

sdk/lib/io/http_parser.dart

 // Copyright (c) 2013, 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.
 
 part of dart.io;
 
 // Global constants.
 class _Const {
   // Bytes for "HTTP".
   static const HTTP = const [72, 84, 84, 80];
@@ skipping 497 matching lines @@
           _messageType = _MessageType.REQUEST;
           _state = _State.HEADER_START;
           break;
 
         case _State.RESPONSE_LINE_STATUS_CODE:
           if (byte == _CharCode.SP) {
             if (_method_or_status_code.length != 3) {
               throw new HttpException("Invalid response status code");
             }
             _state = _State.RESPONSE_LINE_REASON_PHRASE;
+          } else if (byte == _CharCode.CR) {
+            // Some HTTP servers does not follow the spec. and send
+            // \r\n right after the status code.
+            _state = _State.RESPONSE_LINE_ENDING;
           } else {
             if (byte < 0x30 && 0x39 < byte) {
               throw new HttpException("Invalid response status code");
             } else {
               _method_or_status_code.add(byte);
             }
           }
           break;
 
         case _State.RESPONSE_LINE_REASON_PHRASE:
@@ skipping 508 matching lines @@
     }
   }
 
   void _reportError(error, [stackTrace]) {
     if (_socketSubscription != null) _socketSubscription.cancel();
     _state = _State.FAILURE;
     _controller.addError(error, stackTrace);
     _controller.close();
   }
 }