diff --git a/README.md b/README.md
index fe927ca..574bb5a 100644
--- a/README.md
+++ b/README.md
@@ -108,6 +108,14 @@ as binary data. The resulting `StompFrame` will have a `binaryBody`. The `body`
 frame will be empty in this case. The same is true if the `content-type` header is
 missing.
 
+## Token Authentication (browser-based clients)
+
+Browser clients can only use standard authentication headers (that is, basic HTTP authentication) or cookies and [cannot provide custom headers](https://github.com/whatwg/websockets/issues/16#issuecomment-332065542) (such as "Authorization" to use a Bearer token). Thus `webSocketConnectHeaders` will do nothing in a browser environment.
+Alternatives are:
+- Use the STOMP client to pass authentication headers at connect time. (recommended)
+    - Use `stompConnectHeaders` to pass your headers in the `CONNECT` frame. Parse those headers on the server (i.e. by using a `ChannelInterceptor` in Spring)
+- Pass your authentication token/credentials as query parameter.
+
 ## Development
 
 #### Running unit tests
diff --git a/lib/stomp_parser.dart b/lib/stomp_parser.dart
index f68efec..68231d0 100644
--- a/lib/stomp_parser.dart
+++ b/lib/stomp_parser.dart
@@ -50,8 +50,7 @@ class StompParser implements Parser {
     } else if (data is List<int>) {
       byteList = Uint8List.fromList(data);
     } else {
-      throw UnsupportedError(
-          'Input data type unsupported ${data.runtimeType}');
+      throw UnsupportedError('Input data type unsupported ${data.runtimeType}');
     }
 
     for (var i = 0; i < byteList.length; i++) {
diff --git a/pubspec.yaml b/pubspec.yaml
index a6eaf2f..320c048 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -3,12 +3,12 @@ homepage: https://github.com/blackhorse-one/stomp_dart
 version: 0.4.4
 description: Dart STOMP client for easy messaging interoperability. Build with flutter in mind, but should work for every dart application.
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   web_socket_channel: ^2.0.0
 
 dev_dependencies:
-  test: ^1.16.5
-  lints: ^2.0.0
-  stream_channel: ^2.1.0
+  test: ^1.23.1
+  lints: ^2.0.1
+  stream_channel: ^2.1.1
diff --git a/test/stomp_parser_test.dart b/test/stomp_parser_test.dart
index 00e35af..a1d96e3 100644
--- a/test/stomp_parser_test.dart
+++ b/test/stomp_parser_test.dart
@@ -307,7 +307,9 @@ void main() {
         count: 2,
       );
 
-      StompParser(onFrame)..parseData(msg)..parseData(msg2);
+      StompParser(onFrame)
+        ..parseData(msg)
+        ..parseData(msg2);
     });
 
     test('can parse multiple messages at once', () {
@@ -455,7 +457,9 @@ void main() {
         count: 2,
       );
 
-      StompParser(callback)..parseData(msg)..parseData(msg2);
+      StompParser(callback)
+        ..parseData(msg)
+        ..parseData(msg2);
     });
 
     group('when content-type is missing', () {
diff --git a/test/stomp_test.dart b/test/stomp_test.dart
index 6c6c380..029e307 100644
--- a/test/stomp_test.dart
+++ b/test/stomp_test.dart
@@ -11,7 +11,6 @@ import 'package:test/test.dart';
 void main() {
   group('StompClient', () {
     late StompConfig config;
-    StompHandler? handler;
     late StreamChannel streamChannel;
 
     setUpAll(() async {
@@ -78,10 +77,6 @@ void main() {
       );
     });
 
-    tearDown(() async {
-      handler?.dispose();
-    });
-
     tearDownAll(() async {
       await streamChannel.sink.close();
     });