diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..79f51c3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.dart_tool
+.packages
+pubspec.lock
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..e3edd12
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,42 @@
+language: dart
+# This is necessary to use proper Chrome. Travis's version of chromium is from
+# 2014.
+sudo: required
+dist: trusty
+addons:
+  apt:
+    sources:
+      - google-chrome
+    packages:
+      - google-chrome-stable
+  firefox: latest
+
+dart:
+  - dev
+  - stable
+
+with_content_shell: false
+
+matrix:
+  allow_failures:
+    - dart: dev
+
+before_install:
+  - export CHROMEDRIVER_BINARY=/usr/bin/google-chrome
+  - export CHROMEDRIVER_ARGS=--no-sandbox
+  - /usr/bin/google-chrome --version
+  - export DISPLAY=:99.0
+  - sh -e /etc/init.d/xvfb start
+
+before_script:
+  - wget http://chromedriver.storage.googleapis.com/2.35/chromedriver_linux64.zip
+  - unzip chromedriver_linux64.zip
+  - export PATH=$PATH:$PWD
+  - ./tool/travis-setup.sh
+
+script:
+  - ./tool/travis.sh
+
+cache:
+ directories:
+   - $HOME/.pub-cache
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..7c12ae6
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,6 @@
+# Below is a list of people and organizations that have contributed
+# to the Dart project. Names should be added to the list like so:
+#
+#   Name/Organization <email address>
+
+Google Inc.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..6f5e0ea
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,33 @@
+Want to contribute? Great! First, read this page (including the small print at
+the end).
+
+### Before you contribute
+Before we can use your code, you must sign the
+[Google Individual Contributor License Agreement](https://cla.developers.google.com/about/google-individual)
+(CLA), which you can do online. The CLA is necessary mainly because you own the
+copyright to your changes, even after your contribution becomes part of our
+codebase, so we need your permission to use and distribute your code. We also
+need to be sure of various other things—for instance that you'll tell us if you
+know that your code infringes on other people's patents. You don't have to sign
+the CLA until after you've submitted your code for review and a member has
+approved it, but you must do it before we can put your code into our codebase.
+
+Before you start working on a larger contribution, you should get in touch with
+us first through the issue tracker with your idea so that we can help out and
+possibly guide you. Coordinating up front makes it much easier to avoid
+frustration later on.
+
+### Code reviews
+All submissions, including submissions by project members, require review.
+
+### File headers
+All files in the project must start with the following header.
+
+    // Copyright (c) 2015, 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.
+
+### The small print
+Contributions made by corporations are covered by a different agreement than the
+one above, the
+[Software Grant and Corporate Contributor License Agreement](https://developers.google.com/open-source/cla/corporate).
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f75d7c2
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,26 @@
+Copyright 2019, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..33ea08f
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+This package provides support for bi-directional communication through
+Server Sent Events and corresponding POST requests.
diff --git a/analysis_options.yaml b/analysis_options.yaml
new file mode 100644
index 0000000..b59f3bb
--- /dev/null
+++ b/analysis_options.yaml
@@ -0,0 +1,82 @@
+analyzer:
+  strong-mode:
+    implicit-casts: false
+  errors:
+    dead_code: error
+    override_on_non_overriding_method: error
+    unused_element: error
+    unused_import: error
+    unused_local_variable: error
+linter:
+  rules:
+    - always_declare_return_types
+    - annotate_overrides
+    - avoid_empty_else
+    - avoid_function_literals_in_foreach_calls
+    - avoid_init_to_null
+    - avoid_null_checks_in_equality_operators
+    - avoid_relative_lib_imports
+    - avoid_renaming_method_parameters
+    - avoid_return_types_on_setters
+    - avoid_returning_null
+    - avoid_types_as_parameter_names
+    - avoid_unused_constructor_parameters
+    - await_only_futures
+    - camel_case_types
+    - cancel_subscriptions
+    #- cascade_invocations
+    - comment_references
+    - constant_identifier_names
+    - control_flow_in_finally
+    - directives_ordering
+    - empty_catches
+    - empty_constructor_bodies
+    - empty_statements
+    - hash_and_equals
+    - implementation_imports
+    - invariant_booleans
+    - iterable_contains_unrelated_type
+    - library_names
+    - library_prefixes
+    - list_remove_unrelated_type
+    - literal_only_boolean_expressions
+    - no_adjacent_strings_in_list
+    - no_duplicate_case_values
+    - non_constant_identifier_names
+    - null_closures
+    - omit_local_variable_types
+    - only_throw_errors
+    - overridden_fields
+    - package_api_docs
+    - package_names
+    - package_prefixed_library_names
+    - prefer_adjacent_string_concatenation
+    - prefer_collection_literals
+    - prefer_conditional_assignment
+    - prefer_const_constructors
+    - prefer_contains
+    - prefer_equal_for_default_values
+    - prefer_final_fields
+    #- prefer_final_locals
+    - prefer_initializing_formals
+    - prefer_interpolation_to_compose_strings
+    - prefer_is_empty
+    - prefer_is_not_empty
+    - prefer_single_quotes
+    - prefer_typing_uninitialized_variables
+    - recursive_getters
+    - slash_for_doc_comments
+    - super_goes_last
+    - test_types_in_equals
+    - throw_in_finally
+    - type_init_formals
+    - unawaited_futures
+    - unnecessary_brace_in_string_interps
+    - unnecessary_getters_setters
+    - unnecessary_lambdas
+    - unnecessary_null_aware_assignments
+    - unnecessary_statements
+    - unnecessary_this
+    - unrelated_type_equality_checks
+    - use_rethrow_when_possible
+    - valid_regexps
diff --git a/lib/client/sse_client.dart b/lib/client/sse_client.dart
new file mode 100644
index 0000000..02760fe
--- /dev/null
+++ b/lib/client/sse_client.dart
@@ -0,0 +1,86 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:html';
+
+import 'package:http/browser_client.dart';
+import 'package:stream_channel/stream_channel.dart';
+import 'package:uuid/uuid.dart';
+
+/// A client for bi-directional sse communcation.
+///
+/// The client can send any JSON-encodable messages to the server by adding
+/// them to the [sink] and listen to messages from the server on the [stream].
+class SseClient extends StreamChannelMixin<String> {
+  final _incomingController = new StreamController<String>();
+
+  final _outgoingController = new StreamController<String>();
+
+  final _client = new BrowserClient()..withCredentials = true;
+
+  EventSource _eventSource;
+
+  String _serverUrl;
+
+  /// [serverUrl] is the URL under which the server is listening for
+  /// incoming bi-directional SSE connections.
+  SseClient(String serverUrl) {
+    var clientId = '${Uuid().v1()}';
+    _eventSource = new EventSource('$serverUrl?sseClientId=$clientId',
+        withCredentials: true);
+    _serverUrl = '$serverUrl?sseClientId=$clientId';
+    _outgoingController.stream
+        .listen(_onOutgoingMessage, onDone: _onOutgoingDone);
+    _eventSource.addEventListener('message', _onIncomingMessage);
+    _eventSource.addEventListener('control', _onIncomingControlMessage);
+    _eventSource.onError.listen(_incomingController.addError);
+  }
+
+  Stream<Event> get onOpen => _eventSource.onOpen;
+
+  /// Add messages to this [StreamSink] to send them to the server.
+  ///
+  /// The message added to the sink has to be JSON encodable.
+  @override
+  StreamSink<String> get sink => _outgoingController.sink;
+
+  /// [Stream] of messages sent from the server to this client.
+  ///
+  /// A message is a decoded JSON object.
+  @override
+  Stream<String> get stream => _incomingController.stream;
+
+  void close() {
+    _eventSource.close();
+    _incomingController.close();
+    _outgoingController.close();
+    _client.close();
+  }
+
+  void _onIncomingControlMessage(Event message) {
+    var data = (message as MessageEvent).data;
+    if (data == 'close') {
+      close();
+    } else {
+      throw new UnsupportedError('Illegal Control Message "$data"');
+    }
+  }
+
+  void _onIncomingMessage(Event message) {
+    var decoded =
+        jsonDecode((message as MessageEvent).data as String) as String;
+    _incomingController.add(decoded);
+  }
+
+  void _onOutgoingDone() {
+    close();
+  }
+
+  void _onOutgoingMessage(dynamic message) async {
+    var encoded = jsonEncode(message);
+    try {
+      await _client.post(_serverUrl, body: encoded);
+    } catch (_) {
+      // Ignore any error
+    }
+  }
+}
diff --git a/lib/server/sse_handler.dart b/lib/server/sse_handler.dart
new file mode 100644
index 0000000..de13554
--- /dev/null
+++ b/lib/server/sse_handler.dart
@@ -0,0 +1,134 @@
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:async/async.dart';
+import 'package:logging/logging.dart';
+import 'package:pedantic/pedantic.dart';
+import 'package:shelf/shelf.dart' as shelf;
+import 'package:stream_channel/stream_channel.dart';
+
+String _sseHeaders(String origin) => 'HTTP/1.1 200 OK\r\n'
+    'Content-Type: text/event-stream\r\n'
+    'Cache-Control: no-cache\r\n'
+    'Connection: keep-alive\r\n'
+    'Access-Control-Allow-Credentials: true\r\n'
+    'Access-Control-Allow-Origin: $origin\r\n'
+    '\r\n';
+
+/// A bi-directional SSE connection between server and browser.
+class SseConnection extends StreamChannelMixin<String> {
+  final _incomingController = StreamController<String>();
+  final _outgoingController = StreamController<String>();
+  final _closeCompleter = Completer<Null>();
+  final Sink _sink;
+  final String _clientId;
+
+  SseConnection(this._sink, this._clientId) {
+    _outgoingController.stream.listen((data) {
+      if (!_closeCompleter.isCompleted) {
+        _sink.add('data: ${json.encode(data)}\n');
+        _sink.add('\n');
+      }
+    });
+  }
+
+  Future get onClose => _closeCompleter.future;
+
+  ///
+  /// The message added to the sink has to be JSON encodable.
+  @override
+  StreamSink<String> get sink => _outgoingController.sink;
+
+// Add messages to this [StreamSink] to send them to the server.
+  /// [Stream] of messages sent from the server to this client.
+  ///
+  /// A message is a decoded JSON object.
+  @override
+  Stream<String> get stream => _incomingController.stream;
+
+  void close() {
+    if (!_closeCompleter.isCompleted) _closeCompleter.complete();
+  }
+}
+
+/// [SseHandler] handles requests on a user defined path to create
+/// two-way communications of JSON encodable data between server and clients.
+///
+/// A server sends messages to a client through an SSE channel, while
+/// a client sends message to a server through HTTP POST requests.
+class SseHandler {
+  final _logger = Logger('SseHandler');
+  final Uri _uri;
+
+  final Set<SseConnection> _connections = Set<SseConnection>();
+
+  final _connectionController = StreamController<SseConnection>();
+
+  SseHandler(this._uri);
+
+  StreamQueue<SseConnection> get connections =>
+      StreamQueue(_connectionController.stream);
+
+  shelf.Handler get handler => _handle;
+
+  int get numberOfClients => _connections.length;
+
+  shelf.Response _createSseConnection(shelf.Request req, String path) {
+    req.hijack((channel) async {
+      var sink = utf8.encoder.startChunkedConversion(channel.sink);
+      sink.add(_sseHeaders(req.headers['origin']));
+      var clientId = req.url.queryParameters['sseClientId'];
+      var connection = SseConnection(sink, clientId);
+      _connections.add(connection);
+      unawaited(connection.onClose.then((_) {
+        _connections.remove(connection);
+      }));
+      channel.stream.listen((_) {
+        // SSE is unidirectional. Responses are handled through POST requests.
+      }, onDone: () {
+        connection.close();
+      });
+      _connectionController.add(connection);
+    });
+    return null;
+  }
+
+  String _getOriginalPath(shelf.Request req) => req.requestedUri.path;
+
+  Future<shelf.Response> _handle(shelf.Request req) async {
+    var path = _getOriginalPath(req);
+    if (_uri.path != path) {
+      return shelf.Response.notFound('');
+    }
+
+    if (req.headers['accept'] == 'text/event-stream' && req.method == 'GET') {
+      return _createSseConnection(req, path);
+    }
+
+    if (req.headers['accept'] != 'text/event-stream' && req.method == 'POST') {
+      return _handleIncomingMessage(req, path);
+    }
+
+    return shelf.Response.notFound('');
+  }
+
+  Future<shelf.Response> _handleIncomingMessage(
+      shelf.Request req, String path) async {
+    try {
+      var clientId = req.url.queryParameters['sseClientId'];
+      var message = await req.readAsString();
+      var jsonObject = json.decode(message) as String;
+      for (var connection in _connections) {
+        if (connection._clientId == clientId) {
+          connection._incomingController.add(jsonObject);
+        }
+      }
+    } catch (e, st) {
+      _logger.fine('Failed to handle incoming message. $e $st');
+    }
+    return shelf.Response.ok('', headers: {
+      'access-control-allow-credentials': 'true',
+      'access-control-allow-origin': req.headers['origin']
+    });
+  }
+}
diff --git a/pubspec.yaml b/pubspec.yaml
new file mode 100644
index 0000000..13c8db3
--- /dev/null
+++ b/pubspec.yaml
@@ -0,0 +1,25 @@
+name: sse 
+version: 0.0.1 
+author: Dart Team <misc@dartlang.org>
+homepage: https://github.com/dart-lang/sse
+description: >-
+  Provides client and server functionality for setting up bi-directional
+  communication through Server Sent Events (SSE) and corresponding POST 
+  requests.
+
+environment:
+  sdk: ">=2.0.0-dev.64.1 <3.0.0"
+
+dependencies:
+  async: ^2.0.8
+  http: ^0.12.0+1
+  logging: ^0.11.3+2
+  pedantic: ^1.4.0
+  stream_channel: ^1.6.8
+  shelf: ^0.7.4
+  uuid: ^1.0.3
+
+dev_dependencies:
+  shelf_static: ^0.2.8
+  test: ^1.5.3
+  webdriver: ^2.0.0
diff --git a/test/sse_test.dart b/test/sse_test.dart
new file mode 100644
index 0000000..b598665
--- /dev/null
+++ b/test/sse_test.dart
@@ -0,0 +1,100 @@
+@TestOn('vm')
+import 'dart:async';
+import 'dart:io';
+
+import 'package:shelf/shelf.dart' as shelf;
+import 'package:shelf/shelf_io.dart' as io;
+import 'package:shelf_static/shelf_static.dart';
+import 'package:sse/server/sse_handler.dart';
+import 'package:test/test.dart';
+import 'package:webdriver/io.dart';
+
+void main() {
+  HttpServer server;
+  WebDriver webdriver;
+  SseHandler handler;
+
+  setUp(() async {
+    handler = SseHandler(Uri.parse('/test'));
+
+    var cascade = new shelf.Cascade()
+        .add(handler.handler)
+        .add(_faviconHandler)
+        .add(createStaticHandler('test/web',
+            listDirectories: true, defaultDocument: 'index.html'));
+
+    server = await io.serve(cascade.handler, 'localhost', 0);
+    webdriver = await createDriver();
+  });
+
+  tearDown(() async {
+    await webdriver.quit();
+    await server.close();
+  });
+
+  test('Can round trip messages', () async {
+    await webdriver.get('http://localhost:${server.port}');
+    var connection = await handler.connections.next;
+    connection.sink.add('blah');
+    expect(await connection.stream.first, 'blah');
+  });
+
+  test('Multiple clients can connect', () async {
+    var connections = await handler.connections;
+    await webdriver.get('http://localhost:${server.port}');
+    await connections.next;
+    await webdriver.get('http://localhost:${server.port}');
+    await connections.next;
+  });
+
+  test('Routes data correctly', () async {
+    var connections = await handler.connections;
+    await webdriver.get('http://localhost:${server.port}');
+    var connectionA = await connections.next;
+    await webdriver.get('http://localhost:${server.port}');
+    var connectionB = await connections.next;
+
+    connectionA.sink.add('foo');
+    connectionB.sink.add('bar');
+    await connectionA.onClose;
+    expect(await connectionB.stream.first, 'bar');
+  });
+
+  test('Can close from the server', () async {
+    expect(handler.numberOfClients, 0);
+    await webdriver.get('http://localhost:${server.port}');
+    var connection = await handler.connections.next;
+    expect(handler.numberOfClients, 1);
+    connection.close();
+    await connection.onClose;
+    expect(handler.numberOfClients, 0);
+  });
+
+  test('Can close from the client-side', () async {
+    expect(handler.numberOfClients, 0);
+    await webdriver.get('http://localhost:${server.port}');
+    var connection = await handler.connections.next;
+    expect(handler.numberOfClients, 1);
+
+    var closeButton = await webdriver.findElement(const By.tagName('button'));
+    await closeButton.click();
+
+    await connection.onClose;
+    expect(handler.numberOfClients, 0);
+  });
+
+  test('Disconnects when navigating away', () async {
+    await webdriver.get('http://localhost:${server.port}');
+    expect(handler.numberOfClients, 1);
+
+    await webdriver.get('chrome://version/');
+    expect(handler.numberOfClients, 0);
+  });
+}
+
+FutureOr<shelf.Response> _faviconHandler(shelf.Request request) {
+  if (request.url.path.endsWith('favicon.ico')) {
+    return new shelf.Response.ok('');
+  }
+  return new shelf.Response.notFound('');
+}
diff --git a/test/web/index.dart b/test/web/index.dart
new file mode 100644
index 0000000..dd949ca
--- /dev/null
+++ b/test/web/index.dart
@@ -0,0 +1,15 @@
+import 'dart:html';
+
+import 'package:sse/client/sse_client.dart';
+
+main() {
+  var channel = SseClient('/test');
+
+  document.querySelector('button').onClick.listen((_) {
+    channel.sink.close();
+  });
+
+  channel.stream.listen((s) {
+    channel.sink.add(s);
+  });
+}
diff --git a/test/web/index.dart.js b/test/web/index.dart.js
new file mode 100644
index 0000000..fd3064c
--- /dev/null
+++ b/test/web/index.dart.js
@@ -0,0 +1,6539 @@
+(function(){var supportsDirectProtoAccess=function(){var z=function(){}
+z.prototype={p:{}}
+var y=new z()
+if(!(y.__proto__&&y.__proto__.p===z.prototype.p))return false
+try{if(typeof navigator!="undefined"&&typeof navigator.userAgent=="string"&&navigator.userAgent.indexOf("Chrome/")>=0)return true
+if(typeof version=="function"&&version.length==0){var x=version()
+if(/^\d+\.\d+\.\d+\.\d+$/.test(x))return true}}catch(w){}return false}()
+function map(a){a=Object.create(null)
+a.x=0
+delete a.x
+return a}var A=map()
+var B=map()
+var C=map()
+var D=map()
+var E=map()
+var F=map()
+var G=map()
+var H=map()
+var J=map()
+var K=map()
+var L=map()
+var M=map()
+var N=map()
+var O=map()
+var P=map()
+var Q=map()
+var R=map()
+var S=map()
+var T=map()
+var U=map()
+var V=map()
+var W=map()
+var X=map()
+var Y=map()
+var Z=map()
+function I(){}init()
+function setupProgram(a,b,c){"use strict"
+function generateAccessor(b0,b1,b2){var g=b0.split("-")
+var f=g[0]
+var e=f.length
+var d=f.charCodeAt(e-1)
+var a0
+if(g.length>1)a0=true
+else a0=false
+d=d>=60&&d<=64?d-59:d>=123&&d<=126?d-117:d>=37&&d<=43?d-27:0
+if(d){var a1=d&3
+var a2=d>>2
+var a3=f=f.substring(0,e-1)
+var a4=f.indexOf(":")
+if(a4>0){a3=f.substring(0,a4)
+f=f.substring(a4+1)}if(a1){var a5=a1&2?"r":""
+var a6=a1&1?"this":"r"
+var a7="return "+a6+"."+f
+var a8=b2+".prototype.g"+a3+"="
+var a9="function("+a5+"){"+a7+"}"
+if(a0)b1.push(a8+"$reflectable("+a9+");\n")
+else b1.push(a8+a9+";\n")}if(a2){var a5=a2&2?"r,v":"v"
+var a6=a2&1?"this":"r"
+var a7=a6+"."+f+"=v"
+var a8=b2+".prototype.s"+a3+"="
+var a9="function("+a5+"){"+a7+"}"
+if(a0)b1.push(a8+"$reflectable("+a9+");\n")
+else b1.push(a8+a9+";\n")}}return f}function defineClass(a4,a5){var g=[]
+var f="function "+a4+"("
+var e="",d=""
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+Isolate.p=z
+Isolate.a1=a.a1
+Isolate.aB=a.aB
+return Isolate}}!function(){var z=function(a){var t={}
+t[a]=1
+return Object.keys(convertToFastObject(t))[0]}
+init.getIsolateTag=function(a){return z("___dart_"+a+init.isolateTag)}
+var y="___dart_isolate_tags_"
+var x=Object[y]||(Object[y]=Object.create(null))
+var w="_ZxYxX"
+for(var v=0;;v++){var u=z(w+"_"+v+"_")
+if(!(u in x)){x[u]=1
+init.isolateTag=u
+break}}init.dispatchPropertyName=init.getIsolateTag("dispatch_record")}();(function(a){if(typeof document==="undefined"){a(null)
+return}if(typeof document.currentScript!='undefined'){a(document.currentScript)
+return}var z=document.scripts
+function onLoad(b){for(var x=0;x<z.length;++x)z[x].removeEventListener("load",onLoad,false)
+a(b.target)}for(var y=0;y<z.length;++y)z[y].addEventListener("load",onLoad,false)})(function(a){init.currentScript=a
+if(typeof dartMainRunner==="function")dartMainRunner(E.eU,[])
+else E.eU([])})})()
+//# sourceMappingURL=index.dart.js.map
diff --git a/test/web/index.html b/test/web/index.html
new file mode 100644
index 0000000..be26763
--- /dev/null
+++ b/test/web/index.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title>SSE Broadcast Channel Test</title>
+</head>
+
+<body>
+    <button type="button">Close Sink</button>
+    <script type="application/javascript" src="index.dart.js"></script>
+</body>
+
+</html>
diff --git a/tool/travis-setup.sh b/tool/travis-setup.sh
new file mode 100644
index 0000000..33c093d
--- /dev/null
+++ b/tool/travis-setup.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Copyright 2019 Google Inc. All Rights Reserved.
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Fast fail the script on failures.
+set -e
+
+pub get
diff --git a/tool/travis.sh b/tool/travis.sh
new file mode 100644
index 0000000..b9c9c9f
--- /dev/null
+++ b/tool/travis.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Copyright 2019 Google Inc. All Rights Reserved.
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+STATUS=0
+
+# Analyze package.
+dartanalyzer .
+ANALYSIS_STATUS=$?
+if [[ $ANALYSIS_STATUS -ne 0 ]]; then
+  STATUS=$ANALYSIS_STATUS
+fi
+
+# Start chromedriver.
+chromedriver --port=4444 --url-base=wd/hub &
+PIDC=$!
+
+# Run tests.
+pub run test -r expanded -p vm -j 1
+TEST_STATUS=$?
+if [[ $TEST_STATUS -ne 0 ]]; then
+  STATUS=$TEST_STATUS
+fi
+
+# Exit chromedriver and geckodriver.
+kill $PIDC
+
+exit $STATUS