Bumping version from 2.1.0 to 2.1.1

[auto-updated: dependencies]

Directory.Build.targets

@@ -2,5 +2,6 @@
   <PropertyGroup>
     <RuntimeFrameworkVersion Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">$(MicrosoftNETCoreApp20PackageVersion)</RuntimeFrameworkVersion>
     <RuntimeFrameworkVersion Condition=" '$(TargetFramework)' == 'netcoreapp2.1' ">$(MicrosoftNETCoreApp21PackageVersion)</RuntimeFrameworkVersion>
+    <NETStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard2.0' ">$(NETStandardLibrary20PackageVersion)</NETStandardImplicitPackageVersion>
   </PropertyGroup>
 </Project>

NuGetPackageVerifier.json

@@ -0,0 +1,7 @@
+{
+  "Default": {
+    "rules": [
+      "DefaultCompositeRule"
+    ]
+  }
+}

build/dependencies.props

@@ -3,25 +3,26 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-1010</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreDiagnosticsPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreDiagnosticsPackageVersion>
-    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreHostingPackageVersion>
-    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreMvcPackageVersion>
-    <MicrosoftAspNetCoreMvcTagHelpersPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreMvcTagHelpersPackageVersion>
-    <MicrosoftAspNetCoreMvcViewFeaturesPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreMvcViewFeaturesPackageVersion>
-    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreServerKestrelPackageVersion>
-    <MicrosoftAspNetCoreStaticFilesPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreStaticFilesPackageVersion>
-    <MicrosoftAspNetCoreWebSocketsPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreWebSocketsPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsDependencyInjectionPackageVersion>
-    <MicrosoftExtensionsFileProvidersPhysicalPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsFileProvidersPhysicalPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingDebugPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsLoggingDebugPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.1-rtm-15790</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreDiagnosticsPackageVersion>2.1.0</MicrosoftAspNetCoreDiagnosticsPackageVersion>
+    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.1.0</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0</MicrosoftAspNetCoreHostingPackageVersion>
+    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0</MicrosoftAspNetCoreMvcPackageVersion>
+    <MicrosoftAspNetCoreMvcTagHelpersPackageVersion>2.1.0</MicrosoftAspNetCoreMvcTagHelpersPackageVersion>
+    <MicrosoftAspNetCoreMvcViewFeaturesPackageVersion>2.1.0</MicrosoftAspNetCoreMvcViewFeaturesPackageVersion>
+    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0</MicrosoftAspNetCoreServerKestrelPackageVersion>
+    <MicrosoftAspNetCoreStaticFilesPackageVersion>2.1.0</MicrosoftAspNetCoreStaticFilesPackageVersion>
+    <MicrosoftAspNetCoreWebSocketsPackageVersion>2.1.0</MicrosoftAspNetCoreWebSocketsPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0</MicrosoftExtensionsDependencyInjectionPackageVersion>
+    <MicrosoftExtensionsFileProvidersPhysicalPackageVersion>2.1.0</MicrosoftExtensionsFileProvidersPhysicalPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingDebugPackageVersion>2.1.0</MicrosoftExtensionsLoggingDebugPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-26122-01</MicrosoftNETCoreApp21PackageVersion>
-    <NewtonsoftJsonPackageVersion>10.0.1</NewtonsoftJsonPackageVersion>
-    <SystemThreadingTasksDataflowPackageVersion>4.9.0-preview1-26119-06</SystemThreadingTasksDataflowPackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0</MicrosoftNETCoreApp21PackageVersion>
+    <NETStandardLibrary20PackageVersion>2.0.3</NETStandardLibrary20PackageVersion>
+    <NewtonsoftJsonPackageVersion>11.0.2</NewtonsoftJsonPackageVersion>
+    <SystemThreadingTasksDataflowPackageVersion>4.9.0</SystemThreadingTasksDataflowPackageVersion>
   </PropertyGroup>
   <Import Project="$(DotNetPackageVersionPropsPath)" Condition=" '$(DotNetPackageVersionPropsPath)' != '' " />
 </Project>

build/repo.props

@@ -4,7 +4,8 @@
   <PropertyGroup>
     <!-- These properties are use by the automation that updates dependencies.props -->
     <LineupPackageId>Internal.AspNetCore.Universe.Lineup</LineupPackageId>
-    <LineupPackageRestoreSource>https://dotnet.myget.org/F/aspnetcore-release/api/v3/index.json</LineupPackageRestoreSource>
+    <LineupPackageVersion>2.1.0-rc1-*</LineupPackageVersion>
+    <LineupPackageRestoreSource>https://dotnet.myget.org/F/aspnetcore-dev/api/v3/index.json</LineupPackageRestoreSource>
   </PropertyGroup>
 
   <ItemGroup>

build/sources.props

@@ -5,7 +5,8 @@
     <RestoreSources>$(DotNetRestoreSources)</RestoreSources>
     <RestoreSources Condition="'$(DotNetBuildOffline)' != 'true' AND '$(AspNetUniverseBuildOffline)' != 'true' ">
       $(RestoreSources);
-      https://dotnet.myget.org/F/aspnetcore-release/api/v3/index.json;
+      https://dotnet.myget.org/F/dotnet-core/api/v3/index.json;
+      https://dotnet.myget.org/F/aspnetcore-dev/api/v3/index.json;
       https://dotnet.myget.org/F/aspnetcore-tools/api/v3/index.json;
     </RestoreSources>
     <RestoreSources Condition="'$(DotNetBuildOffline)' != 'true'">

korebuild-lock.txt

@@ -1,2 +1,2 @@
-version:2.1.0-preview1-1010
-commithash:75ca924dfbd673c38841025b04c4dcd93b84f56d
+version:2.1.1-rtm-15790
+commithash:274c65868e735f29f4078c1884c61c4371ee1fc0

src/Microsoft.AspNetCore.NodeServices.Sockets/baseline.netcore.json

@@ -0,0 +1,109 @@
+{
+  "AssemblyIdentity": "Microsoft.AspNetCore.NodeServices.Sockets, Version=2.0.3.0, Culture=neutral, PublicKeyToken=adb9793829ddae60",
+  "Types": [
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.Sockets.NodeServicesOptionsExtensions",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "UseSocketHosting",
+          "Parameters": [
+            {
+              "Name": "options",
+              "Type": "Microsoft.AspNetCore.NodeServices.NodeServicesOptions"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Static": true,
+          "Extension": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.Sockets.VirtualConnections.VirtualConnectionReadErrorHandler",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Sealed": true,
+      "BaseType": "System.MulticastDelegate",
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "Invoke",
+          "Parameters": [
+            {
+              "Name": "ex",
+              "Type": "System.Exception"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Virtual": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "BeginInvoke",
+          "Parameters": [
+            {
+              "Name": "ex",
+              "Type": "System.Exception"
+            },
+            {
+              "Name": "callback",
+              "Type": "System.AsyncCallback"
+            },
+            {
+              "Name": "object",
+              "Type": "System.Object"
+            }
+          ],
+          "ReturnType": "System.IAsyncResult",
+          "Virtual": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "EndInvoke",
+          "Parameters": [
+            {
+              "Name": "result",
+              "Type": "System.IAsyncResult"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Virtual": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [
+            {
+              "Name": "object",
+              "Type": "System.Object"
+            },
+            {
+              "Name": "method",
+              "Type": "System.IntPtr"
+            }
+          ],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    }
+  ]
+}

src/Microsoft.AspNetCore.NodeServices/Content/Node/entrypoint-http.js

@@ -121,8 +121,8 @@
 	var parsedArgs = ArgsUtil_1.parseArgs(process.argv);
 	var requestedPortOrZero = parsedArgs.port || 0; // 0 means 'let the OS decide'
 	server.listen(requestedPortOrZero, 'localhost', function () {
-	    // Signal to HttpNodeHost which port it should make its HTTP connections on
-	    console.log('[Microsoft.AspNetCore.NodeServices.HttpNodeHost:Listening on port ' + server.address().port + '\]');
+	    // Signal to HttpNodeHost which loopback IP address (IPv4 or IPv6) and port it should make its HTTP connections on
+	    console.log('[Microsoft.AspNetCore.NodeServices.HttpNodeHost:Listening on {' + server.address().address + '} port ' + server.address().port + '\]');
 	    // Signal to the NodeServices base class that we're ready to accept invocations
 	    console.log('[Microsoft.AspNetCore.NodeServices:Listening]');
 	});

src/Microsoft.AspNetCore.NodeServices/HostingModels/HttpNodeInstance.cs

@@ -21,8 +21,8 @@ namespace Microsoft.AspNetCore.NodeServices.HostingModels
     /// <seealso cref="Microsoft.AspNetCore.NodeServices.HostingModels.OutOfProcessNodeInstance" />
     internal class HttpNodeInstance : OutOfProcessNodeInstance
     {
-        private static readonly Regex PortMessageRegex =
-            new Regex(@"^\[Microsoft.AspNetCore.NodeServices.HttpNodeHost:Listening on port (\d+)\]$");
+        private static readonly Regex EndpointMessageRegex =
+            new Regex(@"^\[Microsoft.AspNetCore.NodeServices.HttpNodeHost:Listening on {(.*?)} port (\d+)\]$");
 
         private static readonly JsonSerializerSettings jsonSerializerSettings = new JsonSerializerSettings
         {
@@ -32,7 +32,7 @@ namespace Microsoft.AspNetCore.NodeServices.HostingModels
 
         private readonly HttpClient _client;
         private bool _disposed;
-        private int _portNumber;
+        private string _endpoint;
 
         public HttpNodeInstance(NodeServicesOptions options, int port = 0)
         : base(
@@ -63,7 +63,7 @@ namespace Microsoft.AspNetCore.NodeServices.HostingModels
         {
             var payloadJson = JsonConvert.SerializeObject(invocationInfo, jsonSerializerSettings);
             var payload = new StringContent(payloadJson, Encoding.UTF8, "application/json");
-            var response = await _client.PostAsync("http://localhost:" + _portNumber, payload, cancellationToken);
+            var response = await _client.PostAsync(_endpoint, payload, cancellationToken);
 
             if (!response.IsSuccessStatusCode)
             {
@@ -111,13 +111,19 @@ namespace Microsoft.AspNetCore.NodeServices.HostingModels
 
         protected override void OnOutputDataReceived(string outputData)
         {
-            // Watch for "port selected" messages, and when observed, store the port number
+            // Watch for "port selected" messages, and when observed, 
+            // store the IP (IPv4/IPv6) and port number
             // so we can use it when making HTTP requests. The child process will always send
             // one of these messages before it sends a "ready for connections" message.
-            var match = _portNumber != 0 ? null : PortMessageRegex.Match(outputData);
+            var match = string.IsNullOrEmpty(_endpoint) ? EndpointMessageRegex.Match(outputData) : null;
             if (match != null && match.Success)
             {
-                _portNumber = int.Parse(match.Groups[1].Captures[0].Value);
+                var port = int.Parse(match.Groups[2].Captures[0].Value);
+                var resolvedIpAddress = match.Groups[1].Captures[0].Value;
+
+                //IPv6 must be wrapped with [] brackets
+                resolvedIpAddress = resolvedIpAddress == "::1" ? $"[{resolvedIpAddress}]" : resolvedIpAddress;
+                _endpoint = $"http://{resolvedIpAddress}:{port}";
             }
             else
             {

src/Microsoft.AspNetCore.NodeServices/TypeScript/HttpNodeInstanceEntryPoint.ts

@@ -70,8 +70,8 @@ const server = http.createServer((req, res) => {
 const parsedArgs = parseArgs(process.argv);
 const requestedPortOrZero = parsedArgs.port || 0; // 0 means 'let the OS decide'
 server.listen(requestedPortOrZero, 'localhost', function () {
-    // Signal to HttpNodeHost which port it should make its HTTP connections on
-    console.log('[Microsoft.AspNetCore.NodeServices.HttpNodeHost:Listening on port ' + server.address().port + '\]');
+    // Signal to HttpNodeHost which loopback IP address (IPv4 or IPv6) and port it should make its HTTP connections on
+    console.log('[Microsoft.AspNetCore.NodeServices.HttpNodeHost:Listening on {' + server.address().address + '} port ' + server.address().port + '\]');
 
     // Signal to the NodeServices base class that we're ready to accept invocations
     console.log('[Microsoft.AspNetCore.NodeServices:Listening]');

src/Microsoft.AspNetCore.NodeServices/baseline.netcore.json

@@ -0,0 +1,935 @@
+{
+  "AssemblyIdentity": "Microsoft.AspNetCore.NodeServices, Version=2.0.3.0, Culture=neutral, PublicKeyToken=adb9793829ddae60",
+  "Types": [
+    {
+      "Name": "Microsoft.Extensions.DependencyInjection.NodeServicesServiceCollectionExtensions",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "AddNodeServices",
+          "Parameters": [
+            {
+              "Name": "serviceCollection",
+              "Type": "Microsoft.Extensions.DependencyInjection.IServiceCollection"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Static": true,
+          "Extension": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "AddNodeServices",
+          "Parameters": [
+            {
+              "Name": "serviceCollection",
+              "Type": "Microsoft.Extensions.DependencyInjection.IServiceCollection"
+            },
+            {
+              "Name": "setupAction",
+              "Type": "System.Action<Microsoft.AspNetCore.NodeServices.NodeServicesOptions>"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Static": true,
+          "Extension": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.NodeServicesFactory",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "CreateNodeServices",
+          "Parameters": [
+            {
+              "Name": "options",
+              "Type": "Microsoft.AspNetCore.NodeServices.NodeServicesOptions"
+            }
+          ],
+          "ReturnType": "Microsoft.AspNetCore.NodeServices.INodeServices",
+          "Static": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.NodeServicesOptions",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "get_NodeInstanceFactory",
+          "Parameters": [],
+          "ReturnType": "System.Func<Microsoft.AspNetCore.NodeServices.HostingModels.INodeInstance>",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_NodeInstanceFactory",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Func<Microsoft.AspNetCore.NodeServices.HostingModels.INodeInstance>"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ProjectPath",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ProjectPath",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_WatchFileExtensions",
+          "Parameters": [],
+          "ReturnType": "System.String[]",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_WatchFileExtensions",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String[]"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_NodeInstanceOutputLogger",
+          "Parameters": [],
+          "ReturnType": "Microsoft.Extensions.Logging.ILogger",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_NodeInstanceOutputLogger",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "Microsoft.Extensions.Logging.ILogger"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_LaunchWithDebugging",
+          "Parameters": [],
+          "ReturnType": "System.Boolean",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_LaunchWithDebugging",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Boolean"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_DebuggingPort",
+          "Parameters": [],
+          "ReturnType": "System.Int32",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_DebuggingPort",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Int32"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_EnvironmentVariables",
+          "Parameters": [],
+          "ReturnType": "System.Collections.Generic.IDictionary<System.String, System.String>",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_EnvironmentVariables",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Collections.Generic.IDictionary<System.String, System.String>"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_InvocationTimeoutMilliseconds",
+          "Parameters": [],
+          "ReturnType": "System.Int32",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_InvocationTimeoutMilliseconds",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Int32"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ApplicationStoppingToken",
+          "Parameters": [],
+          "ReturnType": "System.Threading.CancellationToken",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ApplicationStoppingToken",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Threading.CancellationToken"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [
+            {
+              "Name": "serviceProvider",
+              "Type": "System.IServiceProvider"
+            }
+          ],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.INodeServices",
+      "Visibility": "Public",
+      "Kind": "Interface",
+      "Abstract": true,
+      "ImplementedInterfaces": [
+        "System.IDisposable"
+      ],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "InvokeAsync<T0>",
+          "Parameters": [
+            {
+              "Name": "moduleName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "args",
+              "Type": "System.Object[]",
+              "IsParams": true
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<T0>",
+          "GenericParameter": [
+            {
+              "ParameterName": "T",
+              "ParameterPosition": 0,
+              "BaseTypeOrInterfaces": []
+            }
+          ]
+        },
+        {
+          "Kind": "Method",
+          "Name": "InvokeAsync<T0>",
+          "Parameters": [
+            {
+              "Name": "cancellationToken",
+              "Type": "System.Threading.CancellationToken"
+            },
+            {
+              "Name": "moduleName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "args",
+              "Type": "System.Object[]",
+              "IsParams": true
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<T0>",
+          "GenericParameter": [
+            {
+              "ParameterName": "T",
+              "ParameterPosition": 0,
+              "BaseTypeOrInterfaces": []
+            }
+          ]
+        },
+        {
+          "Kind": "Method",
+          "Name": "InvokeExportAsync<T0>",
+          "Parameters": [
+            {
+              "Name": "moduleName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "exportedFunctionName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "args",
+              "Type": "System.Object[]",
+              "IsParams": true
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<T0>",
+          "GenericParameter": [
+            {
+              "ParameterName": "T",
+              "ParameterPosition": 0,
+              "BaseTypeOrInterfaces": []
+            }
+          ]
+        },
+        {
+          "Kind": "Method",
+          "Name": "InvokeExportAsync<T0>",
+          "Parameters": [
+            {
+              "Name": "cancellationToken",
+              "Type": "System.Threading.CancellationToken"
+            },
+            {
+              "Name": "moduleName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "exportedFunctionName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "args",
+              "Type": "System.Object[]",
+              "IsParams": true
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<T0>",
+          "GenericParameter": [
+            {
+              "ParameterName": "T",
+              "ParameterPosition": 0,
+              "BaseTypeOrInterfaces": []
+            }
+          ]
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.EmbeddedResourceReader",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "Read",
+          "Parameters": [
+            {
+              "Name": "assemblyContainingType",
+              "Type": "System.Type"
+            },
+            {
+              "Name": "path",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.String",
+          "Static": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.StringAsTempFile",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Sealed": true,
+      "ImplementedInterfaces": [
+        "System.IDisposable"
+      ],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "get_FileName",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "Dispose",
+          "Parameters": [],
+          "ReturnType": "System.Void",
+          "Sealed": true,
+          "Virtual": true,
+          "ImplementedInterface": "System.IDisposable",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "Finalize",
+          "Parameters": [],
+          "ReturnType": "System.Void",
+          "Virtual": true,
+          "Override": true,
+          "Visibility": "Protected",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [
+            {
+              "Name": "content",
+              "Type": "System.String"
+            },
+            {
+              "Name": "applicationStoppingToken",
+              "Type": "System.Threading.CancellationToken"
+            }
+          ],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.HostingModels.INodeInstance",
+      "Visibility": "Public",
+      "Kind": "Interface",
+      "Abstract": true,
+      "ImplementedInterfaces": [
+        "System.IDisposable"
+      ],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "InvokeExportAsync<T0>",
+          "Parameters": [
+            {
+              "Name": "cancellationToken",
+              "Type": "System.Threading.CancellationToken"
+            },
+            {
+              "Name": "moduleName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "exportNameOrNull",
+              "Type": "System.String"
+            },
+            {
+              "Name": "args",
+              "Type": "System.Object[]",
+              "IsParams": true
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<T0>",
+          "GenericParameter": [
+            {
+              "ParameterName": "T",
+              "ParameterPosition": 0,
+              "BaseTypeOrInterfaces": []
+            }
+          ]
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.HostingModels.NodeInvocationException",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "BaseType": "System.Exception",
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "get_NodeInstanceUnavailable",
+          "Parameters": [],
+          "ReturnType": "System.Boolean",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_AllowConnectionDraining",
+          "Parameters": [],
+          "ReturnType": "System.Boolean",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [
+            {
+              "Name": "message",
+              "Type": "System.String"
+            },
+            {
+              "Name": "details",
+              "Type": "System.String"
+            }
+          ],
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [
+            {
+              "Name": "message",
+              "Type": "System.String"
+            },
+            {
+              "Name": "details",
+              "Type": "System.String"
+            },
+            {
+              "Name": "nodeInstanceUnavailable",
+              "Type": "System.Boolean"
+            },
+            {
+              "Name": "allowConnectionDraining",
+              "Type": "System.Boolean"
+            }
+          ],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.HostingModels.NodeInvocationInfo",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "get_ModuleName",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ModuleName",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ExportedFunctionName",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ExportedFunctionName",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_Args",
+          "Parameters": [],
+          "ReturnType": "System.Object[]",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_Args",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Object[]"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.HostingModels.NodeServicesOptionsExtensions",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "UseHttpHosting",
+          "Parameters": [
+            {
+              "Name": "options",
+              "Type": "Microsoft.AspNetCore.NodeServices.NodeServicesOptions"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Static": true,
+          "Extension": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.NodeServices.HostingModels.OutOfProcessNodeInstance",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "ImplementedInterfaces": [
+        "Microsoft.AspNetCore.NodeServices.HostingModels.INodeInstance"
+      ],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "InvokeExportAsync<T0>",
+          "Parameters": [
+            {
+              "Name": "cancellationToken",
+              "Type": "System.Threading.CancellationToken"
+            },
+            {
+              "Name": "moduleName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "exportNameOrNull",
+              "Type": "System.String"
+            },
+            {
+              "Name": "args",
+              "Type": "System.Object[]",
+              "IsParams": true
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<T0>",
+          "Sealed": true,
+          "Virtual": true,
+          "ImplementedInterface": "Microsoft.AspNetCore.NodeServices.HostingModels.INodeInstance",
+          "Visibility": "Public",
+          "GenericParameter": [
+            {
+              "ParameterName": "T",
+              "ParameterPosition": 0,
+              "BaseTypeOrInterfaces": []
+            }
+          ]
+        },
+        {
+          "Kind": "Method",
+          "Name": "Dispose",
+          "Parameters": [],
+          "ReturnType": "System.Void",
+          "Sealed": true,
+          "Virtual": true,
+          "ImplementedInterface": "System.IDisposable",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "InvokeExportAsync<T0>",
+          "Parameters": [
+            {
+              "Name": "invocationInfo",
+              "Type": "Microsoft.AspNetCore.NodeServices.HostingModels.NodeInvocationInfo"
+            },
+            {
+              "Name": "cancellationToken",
+              "Type": "System.Threading.CancellationToken"
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<T0>",
+          "Virtual": true,
+          "Abstract": true,
+          "Visibility": "Protected",
+          "GenericParameter": [
+            {
+              "ParameterName": "T",
+              "ParameterPosition": 0,
+              "BaseTypeOrInterfaces": []
+            }
+          ]
+        },
+        {
+          "Kind": "Method",
+          "Name": "PrepareNodeProcessStartInfo",
+          "Parameters": [
+            {
+              "Name": "entryPointFilename",
+              "Type": "System.String"
+            },
+            {
+              "Name": "projectPath",
+              "Type": "System.String"
+            },
+            {
+              "Name": "commandLineArguments",
+              "Type": "System.String"
+            },
+            {
+              "Name": "environmentVars",
+              "Type": "System.Collections.Generic.IDictionary<System.String, System.String>"
+            },
+            {
+              "Name": "launchWithDebugging",
+              "Type": "System.Boolean"
+            },
+            {
+              "Name": "debuggingPort",
+              "Type": "System.Int32"
+            }
+          ],
+          "ReturnType": "System.Diagnostics.ProcessStartInfo",
+          "Virtual": true,
+          "Visibility": "Protected",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "OnOutputDataReceived",
+          "Parameters": [
+            {
+              "Name": "outputData",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Virtual": true,
+          "Visibility": "Protected",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "OnErrorDataReceived",
+          "Parameters": [
+            {
+              "Name": "errorData",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Virtual": true,
+          "Visibility": "Protected",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "Dispose",
+          "Parameters": [
+            {
+              "Name": "disposing",
+              "Type": "System.Boolean"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Virtual": true,
+          "Visibility": "Protected",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "Finalize",
+          "Parameters": [],
+          "ReturnType": "System.Void",
+          "Virtual": true,
+          "Override": true,
+          "Visibility": "Protected",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [
+            {
+              "Name": "entryPointScript",
+              "Type": "System.String"
+            },
+            {
+              "Name": "projectPath",
+              "Type": "System.String"
+            },
+            {
+              "Name": "watchFileExtensions",
+              "Type": "System.String[]"
+            },
+            {
+              "Name": "commandLineArguments",
+              "Type": "System.String"
+            },
+            {
+              "Name": "applicationStoppingToken",
+              "Type": "System.Threading.CancellationToken"
+            },
+            {
+              "Name": "nodeOutputLogger",
+              "Type": "Microsoft.Extensions.Logging.ILogger"
+            },
+            {
+              "Name": "environmentVars",
+              "Type": "System.Collections.Generic.IDictionary<System.String, System.String>"
+            },
+            {
+              "Name": "invocationTimeoutMilliseconds",
+              "Type": "System.Int32"
+            },
+            {
+              "Name": "launchWithDebugging",
+              "Type": "System.Boolean"
+            },
+            {
+              "Name": "debuggingPort",
+              "Type": "System.Int32"
+            }
+          ],
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Field",
+          "Name": "OutputLogger",
+          "Parameters": [],
+          "ReturnType": "Microsoft.Extensions.Logging.ILogger",
+          "ReadOnly": true,
+          "Visibility": "Protected",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    }
+  ]
+}

src/Microsoft.AspNetCore.SpaServices.Extensions/AngularCli/AngularCliMiddleware.cs

@@ -105,6 +105,7 @@ namespace Microsoft.AspNetCore.SpaServices.AngularCli
             // connection then it's not ready. We keep trying forever because this is dev-mode
             // only, and only a single startup attempt will be made, and there's a further level
             // of timeouts enforced on a per-request basis.
+            var timeoutMilliseconds = 1000;
             using (var client = new HttpClient())
             {
                 while (true)
@@ -114,12 +115,23 @@ namespace Microsoft.AspNetCore.SpaServices.AngularCli
                         // If we get any HTTP response, the CLI server is ready
                         await client.SendAsync(
                             new HttpRequestMessage(HttpMethod.Head, cliServerUri),
-                            new CancellationTokenSource(1000).Token);
+                            new CancellationTokenSource(timeoutMilliseconds).Token);
                         return;
                     }
                     catch (Exception)
                     {
-                        await Task.Delay(1000); // 1 second
+                        await Task.Delay(500);
+
+                        // Depending on the host's networking configuration, the requests can take a while
+                        // to go through, most likely due to the time spent resolving 'localhost'.
+                        // Each time we have a failure, allow a bit longer next time (up to a maximum).
+                        // This only influences the time until we regard the dev server as 'ready', so it
+                        // doesn't affect the runtime perf (even in dev mode) once the first connection is made.
+                        // Resolves https://github.com/aspnet/JavaScriptServices/issues/1611
+                        if (timeoutMilliseconds < 10000)
+                        {
+                            timeoutMilliseconds += 3000;
+                        }
                     }
                 }
             }

src/Microsoft.AspNetCore.SpaServices.Extensions/Proxying/SpaProxy.cs

@@ -22,7 +22,9 @@ namespace Microsoft.AspNetCore.SpaServices.Extensions.Proxy
         private const int DefaultWebSocketBufferSize = 4096;
         private const int StreamCopyBufferSize = 81920;
 
-        private static readonly string[] NotForwardedWebSocketHeaders = new[] { "Connection", "Host", "Upgrade", "Sec-WebSocket-Key", "Sec-WebSocket-Version" };
+        // Don't forward User-Agent/Accept because of https://github.com/aspnet/JavaScriptServices/issues/1469
+        // Others just aren't applicable in proxy scenarios
+        private static readonly string[] NotForwardedWebSocketHeaders = new[] { "Accept", "Connection", "Host", "User-Agent", "Upgrade", "Sec-WebSocket-Key", "Sec-WebSocket-Version" };
 
         public static HttpClient CreateHttpClientForProxy(TimeSpan requestTimeout)
         {
@@ -204,7 +206,19 @@ namespace Microsoft.AspNetCore.SpaServices.Extensions.Proxy
                 {
                     if (!NotForwardedWebSocketHeaders.Contains(headerEntry.Key, StringComparer.OrdinalIgnoreCase))
                     {
-                        client.Options.SetRequestHeader(headerEntry.Key, headerEntry.Value);
+                        try
+                        {
+                            client.Options.SetRequestHeader(headerEntry.Key, headerEntry.Value);
+                        }
+                        catch (ArgumentException)
+                        {
+                            // On net461, certain header names are reserved and can't be set.
+                            // We filter out the known ones via the test above, but there could
+                            // be others arbitrarily set by the client. It's not helpful to
+                            // consider it an error, so just skip non-forwardable headers.
+                            // The perf implications of handling this via a catch aren't an
+                            // issue since this is a dev-time only feature.
+                        }
                     }
                 }
 

src/Microsoft.AspNetCore.SpaServices/Webpack/WebpackDevMiddlewareOptions.cs

@@ -50,5 +50,12 @@ namespace Microsoft.AspNetCore.SpaServices.Webpack
         /// the webpack compiler.
         /// </summary>
         public IDictionary<string, string> EnvironmentVariables { get; set; }
+
+        /// <summary>
+        /// Specifies a value for the "env" parameter to be passed into the Webpack configuration
+        /// function. The value must be JSON-serializable, and will only be used if the Webpack
+        /// configuration is exported as a function.
+        /// </summary>
+        public object EnvParam { get; set; }
     }
 }

src/Microsoft.AspNetCore.SpaServices/baseline.netcore.json

@@ -0,0 +1,730 @@
+{
+  "AssemblyIdentity": "Microsoft.AspNetCore.SpaServices, Version=2.0.3.0, Culture=neutral, PublicKeyToken=adb9793829ddae60",
+  "Types": [
+    {
+      "Name": "Microsoft.Extensions.DependencyInjection.PrerenderingServiceCollectionExtensions",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "AddSpaPrerenderer",
+          "Parameters": [
+            {
+              "Name": "serviceCollection",
+              "Type": "Microsoft.Extensions.DependencyInjection.IServiceCollection"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Static": true,
+          "Extension": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.Builder.SpaRouteExtensions",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "MapSpaFallbackRoute",
+          "Parameters": [
+            {
+              "Name": "routeBuilder",
+              "Type": "Microsoft.AspNetCore.Routing.IRouteBuilder"
+            },
+            {
+              "Name": "name",
+              "Type": "System.String"
+            },
+            {
+              "Name": "defaults",
+              "Type": "System.Object"
+            },
+            {
+              "Name": "constraints",
+              "Type": "System.Object",
+              "DefaultValue": "null"
+            },
+            {
+              "Name": "dataTokens",
+              "Type": "System.Object",
+              "DefaultValue": "null"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Static": true,
+          "Extension": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "MapSpaFallbackRoute",
+          "Parameters": [
+            {
+              "Name": "routeBuilder",
+              "Type": "Microsoft.AspNetCore.Routing.IRouteBuilder"
+            },
+            {
+              "Name": "name",
+              "Type": "System.String"
+            },
+            {
+              "Name": "templatePrefix",
+              "Type": "System.String"
+            },
+            {
+              "Name": "defaults",
+              "Type": "System.Object"
+            },
+            {
+              "Name": "constraints",
+              "Type": "System.Object",
+              "DefaultValue": "null"
+            },
+            {
+              "Name": "dataTokens",
+              "Type": "System.Object",
+              "DefaultValue": "null"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Static": true,
+          "Extension": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.Builder.WebpackDevMiddleware",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "UseWebpackDevMiddleware",
+          "Parameters": [
+            {
+              "Name": "appBuilder",
+              "Type": "Microsoft.AspNetCore.Builder.IApplicationBuilder"
+            },
+            {
+              "Name": "options",
+              "Type": "Microsoft.AspNetCore.SpaServices.Webpack.WebpackDevMiddlewareOptions",
+              "DefaultValue": "null"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Static": true,
+          "Extension": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.SpaServices.Webpack.WebpackDevMiddlewareOptions",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "get_HotModuleReplacement",
+          "Parameters": [],
+          "ReturnType": "System.Boolean",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_HotModuleReplacement",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Boolean"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_HotModuleReplacementEndpoint",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_HotModuleReplacementEndpoint",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_HotModuleReplacementServerPort",
+          "Parameters": [],
+          "ReturnType": "System.Int32",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_HotModuleReplacementServerPort",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Int32"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ReactHotModuleReplacement",
+          "Parameters": [],
+          "ReturnType": "System.Boolean",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ReactHotModuleReplacement",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Boolean"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_HotModuleReplacementClientOptions",
+          "Parameters": [],
+          "ReturnType": "System.Collections.Generic.IDictionary<System.String, System.String>",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_HotModuleReplacementClientOptions",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Collections.Generic.IDictionary<System.String, System.String>"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ConfigFile",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ConfigFile",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ProjectPath",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ProjectPath",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_EnvironmentVariables",
+          "Parameters": [],
+          "ReturnType": "System.Collections.Generic.IDictionary<System.String, System.String>",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_EnvironmentVariables",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Collections.Generic.IDictionary<System.String, System.String>"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.SpaServices.Prerendering.ISpaPrerenderer",
+      "Visibility": "Public",
+      "Kind": "Interface",
+      "Abstract": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "RenderToString",
+          "Parameters": [
+            {
+              "Name": "moduleName",
+              "Type": "System.String"
+            },
+            {
+              "Name": "exportName",
+              "Type": "System.String",
+              "DefaultValue": "null"
+            },
+            {
+              "Name": "customDataParameter",
+              "Type": "System.Object",
+              "DefaultValue": "null"
+            },
+            {
+              "Name": "timeoutMilliseconds",
+              "Type": "System.Int32",
+              "DefaultValue": "0"
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<Microsoft.AspNetCore.SpaServices.Prerendering.RenderToStringResult>",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.SpaServices.Prerendering.JavaScriptModuleExport",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "get_ModuleName",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ExportName",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ExportName",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [
+            {
+              "Name": "moduleName",
+              "Type": "System.String"
+            }
+          ],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.SpaServices.Prerendering.Prerenderer",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "Abstract": true,
+      "Static": true,
+      "Sealed": true,
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "RenderToString",
+          "Parameters": [
+            {
+              "Name": "applicationBasePath",
+              "Type": "System.String"
+            },
+            {
+              "Name": "nodeServices",
+              "Type": "Microsoft.AspNetCore.NodeServices.INodeServices"
+            },
+            {
+              "Name": "applicationStoppingToken",
+              "Type": "System.Threading.CancellationToken"
+            },
+            {
+              "Name": "bootModule",
+              "Type": "Microsoft.AspNetCore.SpaServices.Prerendering.JavaScriptModuleExport"
+            },
+            {
+              "Name": "requestAbsoluteUrl",
+              "Type": "System.String"
+            },
+            {
+              "Name": "requestPathAndQuery",
+              "Type": "System.String"
+            },
+            {
+              "Name": "customDataParameter",
+              "Type": "System.Object"
+            },
+            {
+              "Name": "timeoutMilliseconds",
+              "Type": "System.Int32"
+            },
+            {
+              "Name": "requestPathBase",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task<Microsoft.AspNetCore.SpaServices.Prerendering.RenderToStringResult>",
+          "Static": true,
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.SpaServices.Prerendering.PrerenderTagHelper",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "BaseType": "Microsoft.AspNetCore.Razor.TagHelpers.TagHelper",
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "get_ModuleName",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ModuleName",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ExportName",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ExportName",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_CustomDataParameter",
+          "Parameters": [],
+          "ReturnType": "System.Object",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_CustomDataParameter",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Object"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_TimeoutMillisecondsParameter",
+          "Parameters": [],
+          "ReturnType": "System.Int32",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_TimeoutMillisecondsParameter",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Int32"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_ViewContext",
+          "Parameters": [],
+          "ReturnType": "Microsoft.AspNetCore.Mvc.Rendering.ViewContext",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_ViewContext",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "Microsoft.AspNetCore.Mvc.Rendering.ViewContext"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "ProcessAsync",
+          "Parameters": [
+            {
+              "Name": "context",
+              "Type": "Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext"
+            },
+            {
+              "Name": "output",
+              "Type": "Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput"
+            }
+          ],
+          "ReturnType": "System.Threading.Tasks.Task",
+          "Virtual": true,
+          "Override": true,
+          "ImplementedInterface": "Microsoft.AspNetCore.Razor.TagHelpers.ITagHelperComponent",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [
+            {
+              "Name": "serviceProvider",
+              "Type": "System.IServiceProvider"
+            }
+          ],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    },
+    {
+      "Name": "Microsoft.AspNetCore.SpaServices.Prerendering.RenderToStringResult",
+      "Visibility": "Public",
+      "Kind": "Class",
+      "ImplementedInterfaces": [],
+      "Members": [
+        {
+          "Kind": "Method",
+          "Name": "get_Globals",
+          "Parameters": [],
+          "ReturnType": "Newtonsoft.Json.Linq.JObject",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_Globals",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "Newtonsoft.Json.Linq.JObject"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_Html",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_Html",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_RedirectUrl",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_RedirectUrl",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.String"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "get_StatusCode",
+          "Parameters": [],
+          "ReturnType": "System.Nullable<System.Int32>",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "set_StatusCode",
+          "Parameters": [
+            {
+              "Name": "value",
+              "Type": "System.Nullable<System.Int32>"
+            }
+          ],
+          "ReturnType": "System.Void",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Method",
+          "Name": "CreateGlobalsAssignmentScript",
+          "Parameters": [],
+          "ReturnType": "System.String",
+          "Visibility": "Public",
+          "GenericParameter": []
+        },
+        {
+          "Kind": "Constructor",
+          "Name": ".ctor",
+          "Parameters": [],
+          "Visibility": "Public",
+          "GenericParameter": []
+        }
+      ],
+      "GenericParameters": []
+    }
+  ]
+}

src/Microsoft.AspNetCore.SpaServices/npm/aspnet-webpack/package.json

@@ -1,6 +1,6 @@
 {
   "name": "aspnet-webpack",
-  "version": "2.0.1",
+  "version": "2.0.3",
   "description": "Helpers for using Webpack in ASP.NET Core projects. Works in conjunction with the Microsoft.AspNetCore.SpaServices NuGet package.",
   "main": "index.js",
   "scripts": {
@@ -33,6 +33,6 @@
     "webpack": "^1.13.2"
   },
   "peerDependencies": {
-    "webpack": "^1.13.2 || ^2.1.0-beta"
+    "webpack": "^1.13.2 || ^2.1.0-beta || ^3.0.0"
   }
 }

src/Microsoft.AspNetCore.SpaServices/npm/aspnet-webpack/src/WebpackDevMiddleware.ts

@@ -32,17 +32,28 @@ interface DevServerOptions {
     HotModuleReplacementServerPort: number;
     HotModuleReplacementClientOptions: StringMap<string>;
     ReactHotModuleReplacement: boolean;
+    EnvParam: any;
 }
 
-// We support these three kinds of webpack.config.js export. We don't currently support exported promises
-// (though we might be able to add that in the future, if there's a need).
-type WebpackConfigOrArray = webpack.Configuration | webpack.Configuration[];
-interface WebpackConfigFunc {
-    (env?: any): WebpackConfigOrArray;
+// Interface as defined in es6-promise
+interface Thenable<T> {
+    then<U>(onFulfilled?: (value: T) => U | Thenable<U>, onRejected?: (error: any) => U | Thenable<U>): Thenable<U>;
+    then<U>(onFulfilled?: (value: T) => U | Thenable<U>, onRejected?: (error: any) => void): Thenable<U>;
 }
-type WebpackConfigExport = WebpackConfigOrArray | WebpackConfigFunc;
+
+// We support these four kinds of webpack.config.js export
+type WebpackConfigOrArray = webpack.Configuration | webpack.Configuration[];
+type WebpackConfigOrArrayOrThenable = WebpackConfigOrArray | Thenable<WebpackConfigOrArray>;
+interface WebpackConfigFunc {
+    (env?: any): WebpackConfigOrArrayOrThenable;
+}
+type WebpackConfigExport = WebpackConfigOrArrayOrThenable | WebpackConfigFunc;
 type WebpackConfigModuleExports = WebpackConfigExport | EsModuleExports<WebpackConfigExport>;
 
+function isThenable<T>(obj: any): obj is Thenable<T> {
+    return obj && typeof (<Thenable<any>>obj).then === 'function';
+}
+
 function attachWebpackDevMiddleware(app: any, webpackConfig: webpack.Configuration, enableHotModuleReplacement: boolean, enableReactHotModuleReplacement: boolean, hmrClientOptions: StringMap<string>, hmrServerEndpoint: string) {
     // Build the final Webpack config based on supplied options
     if (enableHotModuleReplacement) {
@@ -226,6 +237,15 @@ function beginWebpackWatcher(webpackConfig: webpack.Configuration) {
 export function createWebpackDevServer(callback: CreateDevServerCallback, optionsJson: string) {
     const options: CreateDevServerOptions = JSON.parse(optionsJson);
 
+    // Enable TypeScript loading if the webpack config is authored in TypeScript
+    if (path.extname(options.webpackConfigPath) === '.ts') {
+        try {
+            require('ts-node/register');
+        } catch (ex) {
+            throw new Error('Error while attempting to enable support for Webpack config file written in TypeScript. Make sure your project depends on the "ts-node" NPM package. The underlying error was: ' + ex.stack);
+        }
+    }
+
     // See the large comment in WebpackTestPermissions.ts for details about this
     if (!hasSufficientPermissions()) {
         console.log('WARNING: Webpack dev middleware is not enabled because the server process does not have sufficient permissions. You should either remove the UseWebpackDevMiddleware call from your code, or to make it work, give your server process user account permission to write to your application directory and to read all ancestor-level directories.');
@@ -243,83 +263,92 @@ export function createWebpackDevServer(callback: CreateDevServerCallback, option
         : (webpackConfigModuleExports as WebpackConfigExport);
 
     if (webpackConfigExport instanceof Function) {
-        // If you export a function, we'll call it with an undefined 'env' arg, since we have nothing else
-        // to pass. This is the same as what the webpack CLI tool does if you specify no '--env.x' values.
-        // In the future, we could add support for configuring the 'env' param in Startup.cs. But right
-        // now, it's not clear that people will want to do that (and they can always make up their own
-        // default env values in their webpack.config.js).
-        webpackConfigExport = webpackConfigExport();
-    }
-    const webpackConfigArray = webpackConfigExport instanceof Array ? webpackConfigExport : [webpackConfigExport];
-
-    const enableHotModuleReplacement = options.suppliedOptions.HotModuleReplacement;
-    const enableReactHotModuleReplacement = options.suppliedOptions.ReactHotModuleReplacement;
-    if (enableReactHotModuleReplacement && !enableHotModuleReplacement) {
-        callback('To use ReactHotModuleReplacement, you must also enable the HotModuleReplacement option.', null);
-        return;
+        // If you export a function, then Webpack convention is that it takes zero or one param,
+        // and that param is called `env` and reflects the `--env.*` args you can specify on
+        // the command line (e.g., `--env.prod`).
+        // When invoking it via WebpackDevMiddleware, we let you configure the `env` param in
+        // your Startup.cs.
+        webpackConfigExport = webpackConfigExport(options.suppliedOptions.EnvParam);
     }
 
-    // The default value, 0, means 'choose randomly'
-    const suggestedHMRPortOrZero = options.suppliedOptions.HotModuleReplacementServerPort || 0;
+    const webpackConfigThenable = isThenable<WebpackConfigOrArray>(webpackConfigExport)
+        ? webpackConfigExport
+        : { then: callback => callback(webpackConfigExport) } as Thenable<WebpackConfigOrArray>;
 
-    const app = connect();
-    const listener = app.listen(suggestedHMRPortOrZero, () => {
-        try {
-            // For each webpack config that specifies a public path, add webpack dev middleware for it
-            const normalizedPublicPaths: string[] = [];
-            webpackConfigArray.forEach(webpackConfig => {
-                if (webpackConfig.target === 'node') {
-                    // For configs that target Node, it's meaningless to set up an HTTP listener, since
-                    // Node isn't going to load those modules over HTTP anyway. It just loads them directly
-                    // from disk. So the most relevant thing we can do with such configs is just write
-                    // updated builds to disk, just like "webpack --watch".
-                    beginWebpackWatcher(webpackConfig);
-                } else {
-                    // For configs that target browsers, we can set up an HTTP listener, and dynamically
-                    // modify the config to enable HMR etc. This just requires that we have a publicPath.
-                    const publicPath = (webpackConfig.output.publicPath || '').trim();
-                    if (!publicPath) {
-                        throw new Error('To use the Webpack dev server, you must specify a value for \'publicPath\' on the \'output\' section of your webpack config (for any configuration that targets browsers)');
-                    }
-                    const publicPathNoTrailingSlash = removeTrailingSlash(publicPath);
-                    normalizedPublicPaths.push(publicPathNoTrailingSlash);
+    webpackConfigThenable.then(webpackConfigResolved => {
+        const webpackConfigArray = webpackConfigResolved instanceof Array ? webpackConfigResolved : [webpackConfigResolved];
 
-                    // This is the URL the client will connect to, except that since it's a relative URL
-                    // (no leading slash), Webpack will resolve it against the runtime <base href> URL
-                    // plus it also adds the publicPath
-                    const hmrClientEndpoint = removeLeadingSlash(options.hotModuleReplacementEndpointUrl);
-
-                    // This is the URL inside the Webpack middleware Node server that we'll proxy to.
-                    // We have to prefix with the public path because Webpack will add the publicPath
-                    // when it resolves hmrClientEndpoint as a relative URL.
-                    const hmrServerEndpoint = ensureLeadingSlash(publicPathNoTrailingSlash + options.hotModuleReplacementEndpointUrl);
-
-                    // We always overwrite the 'path' option as it needs to match what the .NET side is expecting
-                    const hmrClientOptions = options.suppliedOptions.HotModuleReplacementClientOptions || <StringMap<string>>{};
-                    hmrClientOptions['path'] = hmrClientEndpoint;
-
-                    const dynamicPublicPathKey = 'dynamicPublicPath';
-                    if (!(dynamicPublicPathKey in hmrClientOptions)) {
-                        // dynamicPublicPath default to true, so we can work with nonempty pathbases (virtual directories)
-                        hmrClientOptions[dynamicPublicPathKey] = true;
-                    } else {
-                        // ... but you can set it to any other value explicitly if you want (e.g., false)
-                        hmrClientOptions[dynamicPublicPathKey] = JSON.parse(hmrClientOptions[dynamicPublicPathKey]);
-                    }
-
-                    attachWebpackDevMiddleware(app, webpackConfig, enableHotModuleReplacement, enableReactHotModuleReplacement, hmrClientOptions, hmrServerEndpoint);
-                }
-            });
-
-            // Tell the ASP.NET app what addresses we're listening on, so that it can proxy requests here
-            callback(null, {
-                Port: listener.address().port,
-                PublicPaths: normalizedPublicPaths
-            });
-        } catch (ex) {
-            callback(ex.stack, null);
+        const enableHotModuleReplacement = options.suppliedOptions.HotModuleReplacement;
+        const enableReactHotModuleReplacement = options.suppliedOptions.ReactHotModuleReplacement;
+        if (enableReactHotModuleReplacement && !enableHotModuleReplacement) {
+            callback('To use ReactHotModuleReplacement, you must also enable the HotModuleReplacement option.', null);
+            return;
         }
-    });
+
+        // The default value, 0, means 'choose randomly'
+        const suggestedHMRPortOrZero = options.suppliedOptions.HotModuleReplacementServerPort || 0;
+
+        const app = connect();
+        const listener = app.listen(suggestedHMRPortOrZero, () => {
+            try {
+                // For each webpack config that specifies a public path, add webpack dev middleware for it
+                const normalizedPublicPaths: string[] = [];
+                webpackConfigArray.forEach(webpackConfig => {
+                    if (webpackConfig.target === 'node') {
+                        // For configs that target Node, it's meaningless to set up an HTTP listener, since
+                        // Node isn't going to load those modules over HTTP anyway. It just loads them directly
+                        // from disk. So the most relevant thing we can do with such configs is just write
+                        // updated builds to disk, just like "webpack --watch".
+                        beginWebpackWatcher(webpackConfig);
+                    } else {
+                        // For configs that target browsers, we can set up an HTTP listener, and dynamically
+                        // modify the config to enable HMR etc. This just requires that we have a publicPath.
+                        const publicPath = (webpackConfig.output.publicPath || '').trim();
+                        if (!publicPath) {
+                            throw new Error('To use the Webpack dev server, you must specify a value for \'publicPath\' on the \'output\' section of your webpack config (for any configuration that targets browsers)');
+                        }
+                        const publicPathNoTrailingSlash = removeTrailingSlash(publicPath);
+                        normalizedPublicPaths.push(publicPathNoTrailingSlash);
+
+                        // This is the URL the client will connect to, except that since it's a relative URL
+                        // (no leading slash), Webpack will resolve it against the runtime <base href> URL
+                        // plus it also adds the publicPath
+                        const hmrClientEndpoint = removeLeadingSlash(options.hotModuleReplacementEndpointUrl);
+
+                        // This is the URL inside the Webpack middleware Node server that we'll proxy to.
+                        // We have to prefix with the public path because Webpack will add the publicPath
+                        // when it resolves hmrClientEndpoint as a relative URL.
+                        const hmrServerEndpoint = ensureLeadingSlash(publicPathNoTrailingSlash + options.hotModuleReplacementEndpointUrl);
+
+                        // We always overwrite the 'path' option as it needs to match what the .NET side is expecting
+                        const hmrClientOptions = options.suppliedOptions.HotModuleReplacementClientOptions || <StringMap<string>>{};
+                        hmrClientOptions['path'] = hmrClientEndpoint;
+
+                        const dynamicPublicPathKey = 'dynamicPublicPath';
+                        if (!(dynamicPublicPathKey in hmrClientOptions)) {
+                            // dynamicPublicPath default to true, so we can work with nonempty pathbases (virtual directories)
+                            hmrClientOptions[dynamicPublicPathKey] = true;
+                        } else {
+                            // ... but you can set it to any other value explicitly if you want (e.g., false)
+                            hmrClientOptions[dynamicPublicPathKey] = JSON.parse(hmrClientOptions[dynamicPublicPathKey]);
+                        }
+
+                        attachWebpackDevMiddleware(app, webpackConfig, enableHotModuleReplacement, enableReactHotModuleReplacement, hmrClientOptions, hmrServerEndpoint);
+                    }
+                });
+
+                // Tell the ASP.NET app what addresses we're listening on, so that it can proxy requests here
+                callback(null, {
+                    Port: listener.address().port,
+                    PublicPaths: normalizedPublicPaths
+                });
+            } catch (ex) {
+                callback(ex.stack, null);
+            }
+        });
+        },
+        err => callback(err.stack, null)
+    );
 }
 
 function removeLeadingSlash(str: string) {

src/Microsoft.AspNetCore.SpaServices/npm/domain-task/src/main.ts

@@ -7,7 +7,7 @@ const domainTaskBaseUrlStateKey = '__DOMAIN_TASK_INTERNAL_FETCH_BASEURL__DO_NOT_
 
 let noDomainBaseUrl: string;
 
-export function addTask(task: PromiseLike<any>) {
+export function addTask<T>(task: PromiseLike<T>): PromiseLike<T> {
     if (task && domain.active) {
         const state = domainContext.get(domainTasksStateKey) as DomainTasksState;
         if (state) {
@@ -32,6 +32,8 @@ export function addTask(task: PromiseLike<any>) {
             });
         }
     }
+
+    return task;
 }
 
 export function run<T>(codeToRun: () => T, completionCallback: (error: any) => void): T {

version.props

@@ -1,10 +1,12 @@
-<Project>
+<Project>
   <PropertyGroup>
-    <VersionPrefix>2.1.0</VersionPrefix>
-    <VersionSuffix>preview1</VersionSuffix>
+    <VersionPrefix>2.1.1</VersionPrefix>
+    <VersionSuffix>rtm</VersionSuffix>
     <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' == 'rtm' ">$(VersionPrefix)</PackageVersion>
     <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' != 'rtm' ">$(VersionPrefix)-$(VersionSuffix)-final</PackageVersion>
     <BuildNumber Condition="'$(BuildNumber)' == ''">t000</BuildNumber>
+    <FeatureBranchVersionPrefix Condition="'$(FeatureBranchVersionPrefix)' == ''">a-</FeatureBranchVersionPrefix>
+    <VersionSuffix Condition="'$(VersionSuffix)' != '' And '$(FeatureBranchVersionSuffix)' != ''">$(FeatureBranchVersionPrefix)$(VersionSuffix)-$([System.Text.RegularExpressions.Regex]::Replace('$(FeatureBranchVersionSuffix)', '[^\w-]', '-'))</VersionSuffix>
     <VersionSuffix Condition="'$(VersionSuffix)' != '' And '$(BuildNumber)' != ''">$(VersionSuffix)-$(BuildNumber)</VersionSuffix>
   </PropertyGroup>
 </Project>