| Index: pkg/http/lib/src/utils.dart
 | 
| diff --git a/pkg/http/lib/src/utils.dart b/pkg/http/lib/src/utils.dart
 | 
| index 9f22351643331e52cb32cbb8145cecc820d8fa47..e75cbd58dcbb8ac333958ea213ae1bd319bbc140 100644
 | 
| --- a/pkg/http/lib/src/utils.dart
 | 
| +++ b/pkg/http/lib/src/utils.dart
 | 
| @@ -114,7 +114,7 @@ List<int> encodeString(String string, Encoding encoding) {
 | 
|  
 | 
|  /// A regular expression that matches strings that are composed entirely of
 | 
|  /// ASCII-compatible characters.
 | 
| -final RegExp _ASCII_ONLY = const RegExp(r"^[\x00-\x7F]+$");
 | 
| +final RegExp _ASCII_ONLY = new RegExp(r"^[\x00-\x7F]+$");
 | 
|  
 | 
|  /// Returns whether [string] is composed entirely of ASCII-compatible
 | 
|  /// characters.
 | 
| 
 |