diff --git a/docs/BuildFromSource.md b/docs/BuildFromSource.md
index 7740ec6140..5cc74a5f9d 100644
--- a/docs/BuildFromSource.md
+++ b/docs/BuildFromSource.md
@@ -27,6 +27,7 @@ Building ASP.NET Core on Windows requires:
         ```ps1
         PS> ./eng/scripts/InstallJdk.ps1
         ```
+* Chrome - Selenium-based tests require a version of Chrome to be installed. Download and install it from [https://www.google.com/chrome]
 
 ### macOS/Linux
 
diff --git a/src/Components/Components.sln b/src/Components/Components.sln
index 0edcf5e3ca..b95bba6f44 100644
--- a/src/Components/Components.sln
+++ b/src/Components/Components.sln
@@ -238,6 +238,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.AspNetCore.HttpsP
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BlazorServerApp", "Samples\BlazorServerApp\BlazorServerApp.csproj", "{BBF37AF9-8290-4B70-8BA8-0F6017B3B620}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Ignitor", "Ignitor", "{29B5A306-7273-4649-8B04-26234D71ADBD}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -1583,8 +1585,8 @@ Global
 		{DA137BD4-F7F1-4D53-855F-5EC40CEA36B0} = {2FC10057-7A0A-4E34-8302-879925BC0102}
 		{0CDAB70B-71DC-43BE-ACB7-AD2EE3541FFB} = {2FC10057-7A0A-4E34-8302-879925BC0102}
 		{F88118E1-6F4A-4F89-B047-5FFD2889B9F0} = {2FC10057-7A0A-4E34-8302-879925BC0102}
-		{A78CE874-76B7-46FE-8009-1ED5258BA0AA} = {D6712550-0DA2-49C8-88E1-F04CAB982BF4}
-		{FC2A1EB0-A116-4689-92B7-239B1DCCF4CA} = {D6712550-0DA2-49C8-88E1-F04CAB982BF4}
+		{A78CE874-76B7-46FE-8009-1ED5258BA0AA} = {29B5A306-7273-4649-8B04-26234D71ADBD}
+		{FC2A1EB0-A116-4689-92B7-239B1DCCF4CA} = {29B5A306-7273-4649-8B04-26234D71ADBD}
 		{74D21785-2FAB-4266-B7C4-E311EC8EE0DF} = {7260DED9-22A9-4E9D-92F4-5E8A4404DEAF}
 		{E4C01A3F-D3C1-4639-A6A9-930E918843DD} = {7260DED9-22A9-4E9D-92F4-5E8A4404DEAF}
 		{DE297C91-B3E9-4C6F-B74D-0AF9EFEBF684} = {A27FF193-195B-4474-8E6C-840B2E339373}
diff --git a/src/Components/Ignitor/src/BlazorClient.cs b/src/Components/Ignitor/src/BlazorClient.cs
index 861e2ad0f2..818d41598b 100644
--- a/src/Components/Ignitor/src/BlazorClient.cs
+++ b/src/Components/Ignitor/src/BlazorClient.cs
@@ -56,7 +56,7 @@ namespace Ignitor
 
         private CancellableOperation<CapturedAttachComponentCall> NextAttachComponentReceived { get; set; }
 
-        private CancellableOperation<CapturedRenderBatch> NextBatchReceived { get; set; }
+        internal CancellableOperation<CapturedRenderBatch> NextBatchReceived { get; set; }
 
         private CancellableOperation<string> NextErrorReceived { get; set; }
 
@@ -88,7 +88,7 @@ namespace Ignitor
 
         public Task<CapturedRenderBatch> PrepareForNextBatch(TimeSpan? timeout)
         {
-            if (NextBatchReceived?.Completion != null)
+            if (NextBatchReceived != null && !NextBatchReceived.Disposed)
             {
                 throw new InvalidOperationException("Invalid state previous task not completed");
             }
@@ -100,7 +100,7 @@ namespace Ignitor
 
         public Task<CapturedJSInteropCall> PrepareForNextJSInterop(TimeSpan? timeout)
         {
-            if (NextJSInteropReceived?.Completion != null)
+            if (NextJSInteropReceived != null && !NextJSInteropReceived.Disposed)
             {
                 throw new InvalidOperationException("Invalid state previous task not completed");
             }
@@ -112,7 +112,7 @@ namespace Ignitor
 
         public Task<string> PrepareForNextDotNetInterop(TimeSpan? timeout)
         {
-            if (NextDotNetInteropCompletionReceived?.Completion != null)
+            if (NextDotNetInteropCompletionReceived != null && !NextDotNetInteropCompletionReceived.Disposed)
             {
                 throw new InvalidOperationException("Invalid state previous task not completed");
             }
@@ -124,7 +124,7 @@ namespace Ignitor
 
         public Task<string> PrepareForNextCircuitError(TimeSpan? timeout)
         {
-            if (NextErrorReceived?.Completion != null)
+            if (NextErrorReceived != null && !NextErrorReceived.Disposed)
             {
                 throw new InvalidOperationException("Invalid state previous task not completed");
             }
@@ -136,7 +136,7 @@ namespace Ignitor
 
         public Task<Exception> PrepareForNextDisconnect(TimeSpan? timeout)
         {
-            if (NextDisconnect?.Completion != null)
+            if (NextDisconnect != null && !NextDisconnect.Disposed)
             {
                 throw new InvalidOperationException("Invalid state previous task not completed");
             }
@@ -396,7 +396,7 @@ namespace Ignitor
             NextJSInteropReceived?.Completion?.TrySetResult(null);
         }
 
-        private void OnRenderBatch(int id, byte[] data)
+        protected virtual void OnRenderBatch(int id, byte[] data)
         {
             var capturedBatch = new CapturedRenderBatch(id, data);
 
@@ -499,56 +499,6 @@ namespace Ignitor
             return element;
         }
 
-        private class CancellableOperation<TResult>
-        {
-            public CancellableOperation(TimeSpan? timeout)
-            {
-                Timeout = timeout;
-                Initialize();
-            }
-
-            public TimeSpan? Timeout { get; }
-
-            public TaskCompletionSource<TResult> Completion { get; set; }
-
-            public CancellationTokenSource Cancellation { get; set; }
-
-            public CancellationTokenRegistration CancellationRegistration { get; set; }
-
-            private void Initialize()
-            {
-                Completion = new TaskCompletionSource<TResult>(TaskContinuationOptions.RunContinuationsAsynchronously);
-                Completion.Task.ContinueWith(
-                    (task, state) =>
-                    {
-                        var operation = (CancellableOperation<TResult>)state;
-                        operation.Dispose();
-                    },
-                    this,
-                    TaskContinuationOptions.ExecuteSynchronously); // We need to execute synchronously to clean-up before anything else continues
-                if (Timeout != null && Timeout != System.Threading.Timeout.InfiniteTimeSpan && Timeout != TimeSpan.MaxValue)
-                {
-                    Cancellation = new CancellationTokenSource(Timeout.Value);
-                    CancellationRegistration = Cancellation.Token.Register(
-                        (self) =>
-                        {
-                            var operation = (CancellableOperation<TResult>)self;
-                            operation.Completion.TrySetCanceled(operation.Cancellation.Token);
-                            operation.Cancellation.Dispose();
-                            operation.CancellationRegistration.Dispose();
-                        },
-                        this);
-                }
-            }
-
-            private void Dispose()
-            {
-                Completion = null;
-                Cancellation.Dispose();
-                CancellationRegistration.Dispose();
-            }
-        }
-
         private string[] ReadMarkers(string content)
         {
             content = content.Replace("\r\n", "").Replace("\n", "");
diff --git a/src/Components/Ignitor/src/CancellableOperation.cs b/src/Components/Ignitor/src/CancellableOperation.cs
new file mode 100644
index 0000000000..dad8cb5587
--- /dev/null
+++ b/src/Components/Ignitor/src/CancellableOperation.cs
@@ -0,0 +1,64 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Ignitor
+{
+    internal class CancellableOperation<TResult>
+    {
+        public CancellableOperation(TimeSpan? timeout)
+        {
+            Timeout = timeout;
+
+            Completion = new TaskCompletionSource<TResult>(TaskContinuationOptions.RunContinuationsAsynchronously);
+            Completion.Task.ContinueWith(
+                (task, state) =>
+                {
+                    var operation = (CancellableOperation<TResult>)state;
+                    operation.Dispose();
+                },
+                this,
+                TaskContinuationOptions.ExecuteSynchronously); // We need to execute synchronously to clean-up before anything else continues
+
+            if (Timeout != null && Timeout != System.Threading.Timeout.InfiniteTimeSpan && Timeout != TimeSpan.MaxValue)
+            {
+                Cancellation = new CancellationTokenSource(Timeout.Value);
+                CancellationRegistration = Cancellation.Token.Register(
+                    (self) =>
+                    {
+                        var operation = (CancellableOperation<TResult>)self;
+                        operation.Completion.TrySetCanceled(operation.Cancellation.Token);
+                        operation.Cancellation.Dispose();
+                        operation.CancellationRegistration.Dispose();
+                    },
+                    this);
+            }
+        }
+
+        public TimeSpan? Timeout { get; }
+
+        public TaskCompletionSource<TResult> Completion { get; }
+
+        public CancellationTokenSource Cancellation { get; }
+
+        public CancellationTokenRegistration CancellationRegistration { get; }
+
+        public bool Disposed { get; private set; }
+
+        private void Dispose()
+        {
+            if (Disposed)
+            {
+                return;
+            }
+
+            Disposed = true;
+            Completion.TrySetCanceled(Cancellation.Token);
+            Cancellation.Dispose();
+            CancellationRegistration.Dispose();
+        }
+    }
+}
diff --git a/src/Components/Web.JS/dist/Release/blazor.server.js b/src/Components/Web.JS/dist/Release/blazor.server.js
index 230514a51c..aec8945b29 100644
--- a/src/Components/Web.JS/dist/Release/blazor.server.js
+++ b/src/Components/Web.JS/dist/Release/blazor.server.js
@@ -1,4 +1,4 @@
-!function(e){var t={};function n(r){if(t[r])return t[r].exports;var o=t[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,n),o.l=!0,o.exports}n.m=e,n.c=t,n.d=function(e,t,r){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(n.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)n.d(r,o,function(t){return e[t]}.bind(null,o));return r},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=49)}([function(e,t,n){"use strict";var r;n.d(t,"a",function(){return r}),function(e){e[e.Trace=0]="Trace",e[e.Debug=1]="Debug",e[e.Information=2]="Information",e[e.Warning=3]="Warning",e[e.Error=4]="Error",e[e.Critical=5]="Critical",e[e.None=6]="None"}(r||(r={}))},function(e,t,n){"use strict";n.d(t,"a",function(){return a}),n.d(t,"c",function(){return c}),n.d(t,"f",function(){return u}),n.d(t,"g",function(){return l}),n.d(t,"h",function(){return f}),n.d(t,"e",function(){return h}),n.d(t,"d",function(){return p}),n.d(t,"b",function(){return d});var r=n(0),o=n(7),i=function(e,t,n,r){return new(n||(n=Promise))(function(o,i){function s(e){try{c(r.next(e))}catch(e){i(e)}}function a(e){try{c(r.throw(e))}catch(e){i(e)}}function c(e){e.done?o(e.value):new n(function(t){t(e.value)}).then(s,a)}c((r=r.apply(e,t||[])).next())})},s=function(e,t){var n,r,o,i,s={label:0,sent:function(){if(1&o[0])throw o[1];return o[1]},trys:[],ops:[]};return i={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(i[Symbol.iterator]=function(){return this}),i;function a(i){return function(a){return function(i){if(n)throw new TypeError("Generator is already executing.");for(;s;)try{if(n=1,r&&(o=2&i[0]?r.return:i[0]?r.throw||((o=r.return)&&o.call(r),0):r.next)&&!(o=o.call(r,i[1])).done)return o;switch(r=0,o&&(i=[2&i[0],o.value]),i[0]){case 0:case 1:o=i;break;case 4:return s.label++,{value:i[1],done:!1};case 5:s.label++,r=i[1],i=[0];continue;case 7:i=s.ops.pop(),s.trys.pop();continue;default:if(!(o=(o=s.trys).length>0&&o[o.length-1])&&(6===i[0]||2===i[0])){s=0;continue}if(3===i[0]&&(!o||i[1]>o[0]&&i[1]<o[3])){s.label=i[1];break}if(6===i[0]&&s.label<o[1]){s.label=o[1],o=i;break}if(o&&s.label<o[2]){s.label=o[2],s.ops.push(i);break}o[2]&&s.ops.pop(),s.trys.pop();continue}i=t.call(e,s)}catch(e){i=[6,e],r=0}finally{n=o=0}if(5&i[0])throw i[1];return{value:i[0]?i[1]:void 0,done:!0}}([i,a])}}},a=function(){function e(){}return e.isRequired=function(e,t){if(null==e)throw new Error("The '"+t+"' argument is required.")},e.isIn=function(e,t,n){if(!(e in t))throw new Error("Unknown "+n+" value: "+e+".")},e}(),c=function(){function e(){}return Object.defineProperty(e,"isBrowser",{get:function(){return"object"==typeof window},enumerable:!0,configurable:!0}),Object.defineProperty(e,"isWebWorker",{get:function(){return"object"==typeof self&&"importScripts"in self},enumerable:!0,configurable:!0}),Object.defineProperty(e,"isNode",{get:function(){return!this.isBrowser&&!this.isWebWorker},enumerable:!0,configurable:!0}),e}();function u(e,t){var n="";return l(e)?(n="Binary data of length "+e.byteLength,t&&(n+=". 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7:i=s.ops.pop(),s.trys.pop();continue;default:if(!(o=(o=s.trys).length>0&&o[o.length-1])&&(6===i[0]||2===i[0])){s=0;continue}if(3===i[0]&&(!o||i[1]>o[0]&&i[1]<o[3])){s.label=i[1];break}if(6===i[0]&&s.label<o[1]){s.label=o[1],o=i;break}if(o&&s.label<o[2]){s.label=o[2],s.ops.push(i);break}o[2]&&s.ops.pop(),s.trys.pop();continue}i=t.call(e,s)}catch(e){i=[6,e],r=0}finally{n=o=0}if(5&i[0])throw i[1];return{value:i[0]?i[1]:void 0,done:!0}}([i,a])}}},m=3e4,w=15e3;!function(e){e.Disconnected="Disconnected",e.Connecting="Connecting",e.Connected="Connected",e.Disconnecting="Disconnecting",e.Reconnecting="Reconnecting"}(d||(d={}));var E,S,C=function(){function e(e,t,n,r){var i=this;g.a.isRequired(e,"connection"),g.a.isRequired(t,"logger"),g.a.isRequired(n,"protocol"),this.serverTimeoutInMilliseconds=m,this.keepAliveIntervalInMilliseconds=w,this.logger=t,this.protocol=n,this.connection=e,this.reconnectPolicy=r,this.handshakeProtocol=new p.a,this.connection.onreceive=function(e){return i.processIncomingData(e)},this.connection.onclose=function(e){return i.connectionClosed(e)},this.callbacks={},this.methods={},this.closedCallbacks=[],this.reconnectingCallbacks=[],this.reconnectedCallbacks=[],this.invocationId=0,this.receivedHandshakeResponse=!1,this.connectionState=d.Disconnected,this.connectionStarted=!1,this.cachedPingMessage=this.protocol.writeMessage({type:o.Ping})}return e.create=function(t,n,r,o){return new e(t,n,r,o)},Object.defineProperty(e.prototype,"state",{get:function(){return this.connectionState},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"connectionId",{get:function(){return this.connection&&this.connection.connectionId||null},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"baseUrl",{get:function(){return this.connection.baseUrl||""},set:function(e){if(this.connectionState!==d.Disconnected&&this.connectionState!==d.Reconnecting)throw new Error("The HubConnection must be in the Disconnected or Reconnecting state to change the url.");if(!e)throw new Error("The HubConnection url must be a valid url.");this.connection.baseUrl=e},enumerable:!0,configurable:!0}),e.prototype.start=function(){return this.startPromise=this.startWithStateTransitions(),this.startPromise},e.prototype.startWithStateTransitions=function(){return v(this,void 0,void 0,function(){var e;return b(this,function(t){switch(t.label){case 0:if(this.connectionState!==d.Disconnected)return[2,Promise.reject(new Error("Cannot start a HubConnection that is not in the 'Disconnected' state."))];this.connectionState=d.Connecting,this.logger.log(c.a.Debug,"Starting HubConnection."),t.label=1;case 1:return t.trys.push([1,3,,4]),[4,this.startInternal()];case 2:return t.sent(),this.connectionState=d.Connected,this.connectionStarted=!0,this.logger.log(c.a.Debug,"HubConnection connected successfully."),[3,4];case 3:return e=t.sent(),this.connectionState=d.Disconnected,this.logger.log(c.a.Debug,"HubConnection failed to start successfully because of error '"+e+"'."),[2,Promise.reject(e)];case 4:return[2]}})})},e.prototype.startInternal=function(){return v(this,void 0,void 0,function(){var e,t,n,r=this;return b(this,function(o){switch(o.label){case 0:return this.stopDuringStartError=void 0,this.receivedHandshakeResponse=!1,e=new Promise(function(e,t){r.handshakeResolver=e,r.handshakeRejecter=t}),[4,this.connection.start(this.protocol.transferFormat)];case 1:o.sent(),o.label=2;case 2:return o.trys.push([2,5,,7]),t={protocol:this.protocol.name,version:this.protocol.version},this.logger.log(c.a.Debug,"Sending handshake request."),[4,this.sendMessage(this.handshakeProtocol.writeHandshakeRequest(t))];case 3:return o.sent(),this.logger.log(c.a.Information,"Using HubProtocol '"+this.protocol.name+"'."),this.cleanupTimeout(),this.resetTimeoutPeriod(),this.resetKeepAliveInterval(),[4,e];case 4:if(o.sent(),this.stopDuringStartError)throw this.stopDuringStartError;return[3,7];case 5:return n=o.sent(),this.logger.log(c.a.Debug,"Hub handshake failed with error '"+n+"' during start(). Stopping HubConnection."),this.cleanupTimeout(),this.cleanupPingTimer(),[4,this.connection.stop(n)];case 6:throw o.sent(),n;case 7:return[2]}})})},e.prototype.stop=function(){return v(this,void 0,void 0,function(){var e;return b(this,function(t){switch(t.label){case 0:return e=this.startPromise,this.stopPromise=this.stopInternal(),[4,this.stopPromise];case 1:t.sent(),t.label=2;case 2:return t.trys.push([2,4,,5]),[4,e];case 3:return t.sent(),[3,5];case 4:return t.sent(),[3,5];case 5:return[2]}})})},e.prototype.stopInternal=function(e){return this.connectionState===d.Disconnected?(this.logger.log(c.a.Debug,"Call to HubConnection.stop("+e+") ignored because it is already in the disconnected state."),Promise.resolve()):this.connectionState===d.Disconnecting?(this.logger.log(c.a.Debug,"Call to HttpConnection.stop("+e+") ignored because the connection is already in the disconnecting state."),this.stopPromise):(this.connectionState=d.Disconnecting,this.logger.log(c.a.Debug,"Stopping HubConnection."),this.reconnectDelayHandle?(this.logger.log(c.a.Debug,"Connection stopped during reconnect delay. Done reconnecting."),clearTimeout(this.reconnectDelayHandle),this.reconnectDelayHandle=void 0,this.completeClose(),Promise.resolve()):(this.cleanupTimeout(),this.cleanupPingTimer(),this.stopDuringStartError=e||new Error("The connection was stopped before the hub handshake could complete."),this.connection.stop(e)))},e.prototype.stream=function(e){for(var t=this,n=[],r=1;r<arguments.length;r++)n[r-1]=arguments[r];var i,s=this.replaceStreamingParams(n),a=s[0],c=s[1],u=this.createStreamInvocation(e,n,c),l=new y;return l.cancelCallback=function(){var e=t.createCancelInvocation(u.invocationId);return delete t.callbacks[u.invocationId],i.then(function(){return t.sendWithProtocol(e)})},this.callbacks[u.invocationId]=function(e,t){t?l.error(t):e&&(e.type===o.Completion?e.error?l.error(new Error(e.error)):l.complete():l.next(e.item))},i=this.sendWithProtocol(u).catch(function(e){l.error(e),delete t.callbacks[u.invocationId]}),this.launchStreams(a,i),l},e.prototype.sendMessage=function(e){return this.resetKeepAliveInterval(),this.connection.send(e)},e.prototype.sendWithProtocol=function(e){return this.sendMessage(this.protocol.writeMessage(e))},e.prototype.send=function(e){for(var t=[],n=1;n<arguments.length;n++)t[n-1]=arguments[n];var r=this.replaceStreamingParams(t),o=r[0],i=r[1],s=this.sendWithProtocol(this.createInvocation(e,t,!0,i));return this.launchStreams(o,s),s},e.prototype.invoke=function(e){for(var t=this,n=[],r=1;r<arguments.length;r++)n[r-1]=arguments[r];var i=this.replaceStreamingParams(n),s=i[0],a=i[1],c=this.createInvocation(e,n,!1,a);return new Promise(function(e,n){t.callbacks[c.invocationId]=function(t,r){r?n(r):t&&(t.type===o.Completion?t.error?n(new Error(t.error)):e(t.result):n(new Error("Unexpected message type: "+t.type)))};var r=t.sendWithProtocol(c).catch(function(e){n(e),delete t.callbacks[c.invocationId]});t.launchStreams(s,r)})},e.prototype.on=function(e,t){e&&t&&(e=e.toLowerCase(),this.methods[e]||(this.methods[e]=[]),-1===this.methods[e].indexOf(t)&&this.methods[e].push(t))},e.prototype.off=function(e,t){if(e){e=e.toLowerCase();var n=this.methods[e];if(n)if(t){var r=n.indexOf(t);-1!==r&&(n.splice(r,1),0===n.length&&delete this.methods[e])}else delete this.methods[e]}},e.prototype.onclose=function(e){e&&this.closedCallbacks.push(e)},e.prototype.onreconnecting=function(e){e&&this.reconnectingCallbacks.push(e)},e.prototype.onreconnected=function(e){e&&this.reconnectedCallbacks.push(e)},e.prototype.processIncomingData=function(e){if(this.cleanupTimeout(),this.receivedHandshakeResponse||(e=this.processHandshakeResponse(e),this.receivedHandshakeResponse=!0),e)for(var t=0,n=this.protocol.parseMessages(e,this.logger);t<n.length;t++){var r=n[t];switch(r.type){case o.Invocation:this.invokeClientMethod(r);break;case o.StreamItem:case o.Completion:var i=this.callbacks[r.invocationId];i&&(r.type===o.Completion&&delete this.callbacks[r.invocationId],i(r));break;case o.Ping:break;case o.Close:this.logger.log(c.a.Information,"Close message received from server."),this.stopPromise=this.stopInternal(r.error?new Error("Server returned an error on close: "+r.error):void 0);break;default:this.logger.log(c.a.Warning,"Invalid message type: "+r.type+".")}}this.resetTimeoutPeriod()},e.prototype.processHandshakeResponse=function(e){var t,n,r;try{r=(t=this.handshakeProtocol.parseHandshakeResponse(e))[0],n=t[1]}catch(e){var o="Error parsing handshake response: "+e;this.logger.log(c.a.Error,o);var i=new Error(o);throw this.handshakeRejecter(i),i}if(n.error){o="Server returned handshake error: "+n.error;this.logger.log(c.a.Error,o);i=new Error(o);throw this.handshakeRejecter(i),i}return this.logger.log(c.a.Debug,"Server handshake complete."),this.handshakeResolver(),r},e.prototype.resetKeepAliveInterval=function(){var e=this;this.cleanupPingTimer(),this.pingServerHandle=setTimeout(function(){return v(e,void 0,void 0,function(){return b(this,function(e){switch(e.label){case 0:if(this.connectionState!==d.Connected)return[3,4];e.label=1;case 1:return e.trys.push([1,3,,4]),[4,this.sendMessage(this.cachedPingMessage)];case 2:return e.sent(),[3,4];case 3:return e.sent(),this.cleanupPingTimer(),[3,4];case 4:return[2]}})})},this.keepAliveIntervalInMilliseconds)},e.prototype.resetTimeoutPeriod=function(){var e=this;this.connection.features&&this.connection.features.inherentKeepAlive||(this.timeoutHandle=setTimeout(function(){return e.serverTimeout()},this.serverTimeoutInMilliseconds))},e.prototype.serverTimeout=function(){this.connection.stop(new Error("Server timeout elapsed without receiving a message from the server."))},e.prototype.invokeClientMethod=function(e){var t=this,n=this.methods[e.target.toLowerCase()];if(n){try{n.forEach(function(n){return n.apply(t,e.arguments)})}catch(t){this.logger.log(c.a.Error,"A callback for the method "+e.target.toLowerCase()+" threw error '"+t+"'.")}if(e.invocationId){var r="Server requested a response, which is not supported in this version of the client.";this.logger.log(c.a.Error,r),this.stopPromise=this.stopInternal(new Error(r))}}else this.logger.log(c.a.Warning,"No client method with the name '"+e.target+"' found.")},e.prototype.connectionClosed=function(e){this.logger.log(c.a.Debug,"HubConnection.connectionClosed("+e+") called while in state "+this.connectionState+"."),this.stopDuringStartError=this.stopDuringStartError||e||new Error("The underlying connection was closed before the hub handshake could complete."),this.handshakeResolver&&this.handshakeResolver(),this.cancelCallbacksWithError(e||new Error("Invocation canceled due to the underlying connection being closed.")),this.cleanupTimeout(),this.cleanupPingTimer(),this.connectionState===d.Disconnecting?this.completeClose(e):this.connectionState===d.Connected&&this.reconnectPolicy?this.reconnect(e):this.connectionState===d.Connected&&this.completeClose(e)},e.prototype.completeClose=function(e){var t=this;if(this.connectionStarted){this.connectionState=d.Disconnected,this.connectionStarted=!1;try{this.closedCallbacks.forEach(function(n){return n.apply(t,[e])})}catch(t){this.logger.log(c.a.Error,"An onclose callback called with error '"+e+"' threw error '"+t+"'.")}}},e.prototype.reconnect=function(e){return v(this,void 0,void 0,function(){var t,n,r,o,i,s=this;return b(this,function(a){switch(a.label){case 0:if(t=Date.now(),n=0,r=void 0!==e?e:new Error("Attempting to reconnect due to a unknown error."),null===(o=this.getNextRetryDelay(n++,0,r)))return this.logger.log(c.a.Debug,"Connection not reconnecting because the IRetryPolicy returned null on the first reconnect attempt."),this.completeClose(e),[2];if(this.connectionState=d.Reconnecting,e?this.logger.log(c.a.Information,"Connection reconnecting because of error '"+e+"'."):this.logger.log(c.a.Information,"Connection reconnecting."),this.onreconnecting){try{this.reconnectingCallbacks.forEach(function(t){return t.apply(s,[e])})}catch(t){this.logger.log(c.a.Error,"An onreconnecting callback called with error '"+e+"' threw error '"+t+"'.")}if(this.connectionState!==d.Reconnecting)return this.logger.log(c.a.Debug,"Connection left the reconnecting state in onreconnecting callback. Done reconnecting."),[2]}a.label=1;case 1:return null===o?[3,7]:(this.logger.log(c.a.Information,"Reconnect attempt number "+n+" will start in "+o+" ms."),[4,new Promise(function(e){s.reconnectDelayHandle=setTimeout(e,o)})]);case 2:if(a.sent(),this.reconnectDelayHandle=void 0,this.connectionState!==d.Reconnecting)return this.logger.log(c.a.Debug,"Connection left the reconnecting state during reconnect delay. Done reconnecting."),[2];a.label=3;case 3:return a.trys.push([3,5,,6]),[4,this.startInternal()];case 4:if(a.sent(),this.connectionState=d.Connected,this.logger.log(c.a.Information,"HubConnection reconnected successfully."),this.onreconnected)try{this.reconnectedCallbacks.forEach(function(e){return e.apply(s,[s.connection.connectionId])})}catch(e){this.logger.log(c.a.Error,"An onreconnected callback called with connectionId '"+this.connection.connectionId+"; threw error '"+e+"'.")}return[2];case 5:return i=a.sent(),this.logger.log(c.a.Information,"Reconnect attempt failed because of error '"+i+"'."),this.connectionState!==d.Reconnecting?(this.logger.log(c.a.Debug,"Connection left the reconnecting state during reconnect attempt. Done reconnecting."),[2]):(r=i instanceof Error?i:new Error(i.toString()),o=this.getNextRetryDelay(n++,Date.now()-t,r),[3,6]);case 6:return[3,1];case 7:return this.logger.log(c.a.Information,"Reconnect retries have been exhausted after "+(Date.now()-t)+" ms and "+n+" failed attempts. Connection disconnecting."),this.completeClose(),[2]}})})},e.prototype.getNextRetryDelay=function(e,t,n){try{return this.reconnectPolicy.nextRetryDelayInMilliseconds({elapsedMilliseconds:t,previousRetryCount:e,retryReason:n})}catch(n){return this.logger.log(c.a.Error,"IRetryPolicy.nextRetryDelayInMilliseconds("+e+", "+t+") threw error '"+n+"'."),null}},e.prototype.cancelCallbacksWithError=function(e){var t=this.callbacks;this.callbacks={},Object.keys(t).forEach(function(n){(0,t[n])(null,e)})},e.prototype.cleanupPingTimer=function(){this.pingServerHandle&&clearTimeout(this.pingServerHandle)},e.prototype.cleanupTimeout=function(){this.timeoutHandle&&clearTimeout(this.timeoutHandle)},e.prototype.createInvocation=function(e,t,n,r){if(n)return{arguments:t,streamIds:r,target:e,type:o.Invocation};var i=this.invocationId;return this.invocationId++,{arguments:t,invocationId:i.toString(),streamIds:r,target:e,type:o.Invocation}},e.prototype.launchStreams=function(e,t){var n=this;if(0!==e.length){t||(t=Promise.resolve());var r=function(r){e[r].subscribe({complete:function(){t=t.then(function(){return n.sendWithProtocol(n.createCompletionMessage(r))})},error:function(e){var o;o=e instanceof Error?e.message:e&&e.toString?e.toString():"Unknown error",t=t.then(function(){return n.sendWithProtocol(n.createCompletionMessage(r,o))})},next:function(e){t=t.then(function(){return n.sendWithProtocol(n.createStreamItemMessage(r,e))})}})};for(var o in e)r(o)}},e.prototype.replaceStreamingParams=function(e){for(var t=[],n=[],r=0;r<e.length;r++){var o=e[r];if(this.isObservable(o)){var i=this.invocationId;this.invocationId++,t[i]=o,n.push(i.toString()),e.splice(r,1)}}return[t,n]},e.prototype.isObservable=function(e){return e&&e.subscribe&&"function"==typeof e.subscribe},e.prototype.createStreamInvocation=function(e,t,n){var r=this.invocationId;return this.invocationId++,{arguments:t,invocationId:r.toString(),streamIds:n,target:e,type:o.StreamInvocation}},e.prototype.createCancelInvocation=function(e){return{invocationId:e,type:o.CancelInvocation}},e.prototype.createStreamItemMessage=function(e,t){return{invocationId:e,item:t,type:o.StreamItem}},e.prototype.createCompletionMessage=function(e,t,n){return t?{error:t,invocationId:e,type:o.Completion}:{invocationId:e,result:n,type:o.Completion}},e}(),_=[0,2e3,1e4,3e4,null],I=function(){function e(e){this.retryDelays=void 0!==e?e.concat([null]):_}return e.prototype.nextRetryDelayInMilliseconds=function(e){return this.retryDelays[e.previousRetryCount]},e}();!function(e){e[e.None=0]="None",e[e.WebSockets=1]="WebSockets",e[e.ServerSentEvents=2]="ServerSentEvents",e[e.LongPolling=4]="LongPolling"}(E||(E={})),function(e){e[e.Text=1]="Text",e[e.Binary=2]="Binary"}(S||(S={}));var T=function(){function e(){this.isAborted=!1,this.onabort=null}return e.prototype.abort=function(){this.isAborted||(this.isAborted=!0,this.onabort&&this.onabort())},Object.defineProperty(e.prototype,"signal",{get:function(){return this},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"aborted",{get:function(){return this.isAborted},enumerable:!0,configurable:!0}),e}(),k=function(e,t,n,r){return new(n||(n=Promise))(function(o,i){function s(e){try{c(r.next(e))}catch(e){i(e)}}function a(e){try{c(r.throw(e))}catch(e){i(e)}}function c(e){e.done?o(e.value):new n(function(t){t(e.value)}).then(s,a)}c((r=r.apply(e,t||[])).next())})},x=function(e,t){var n,r,o,i,s={label:0,sent:function(){if(1&o[0])throw o[1];return o[1]},trys:[],ops:[]};return i={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(i[Symbol.iterator]=function(){return this}),i;function a(i){return function(a){return function(i){if(n)throw new TypeError("Generator is already executing.");for(;s;)try{if(n=1,r&&(o=2&i[0]?r.return:i[0]?r.throw||((o=r.return)&&o.call(r),0):r.next)&&!(o=o.call(r,i[1])).done)return o;switch(r=0,o&&(i=[2&i[0],o.value]),i[0]){case 0:case 1:o=i;break;case 4:return s.label++,{value:i[1],done:!1};case 5:s.label++,r=i[1],i=[0];continue;case 7:i=s.ops.pop(),s.trys.pop();continue;default:if(!(o=(o=s.trys).length>0&&o[o.length-1])&&(6===i[0]||2===i[0])){s=0;continue}if(3===i[0]&&(!o||i[1]>o[0]&&i[1]<o[3])){s.label=i[1];break}if(6===i[0]&&s.label<o[1]){s.label=o[1],o=i;break}if(o&&s.label<o[2]){s.label=o[2],s.ops.push(i);break}o[2]&&s.ops.pop(),s.trys.pop();continue}i=t.call(e,s)}catch(e){i=[6,e],r=0}finally{n=o=0}if(5&i[0])throw i[1];return{value:i[0]?i[1]:void 0,done:!0}}([i,a])}}},P=function(){function e(e,t,n,r){this.httpClient=e,this.accessTokenFactory=t,this.logger=n,this.pollAbort=new T,this.logMessageContent=r,this.running=!1,this.onreceive=null,this.onclose=null}return Object.defineProperty(e.prototype,"pollAborted",{get:function(){return this.pollAbort.aborted},enumerable:!0,configurable:!0}),e.prototype.connect=function(e,t){return k(this,void 0,void 0,function(){var n,r,o,s;return x(this,function(a){switch(a.label){case 0:if(g.a.isRequired(e,"url"),g.a.isRequired(t,"transferFormat"),g.a.isIn(t,S,"transferFormat"),this.url=e,this.logger.log(c.a.Trace,"(LongPolling transport) Connecting."),t===S.Binary&&"undefined"!=typeof XMLHttpRequest&&"string"!=typeof(new XMLHttpRequest).responseType)throw new Error("Binary protocols over XmlHttpRequest not implementing advanced features are not supported.");return n={abortSignal:this.pollAbort.signal,headers:{},timeout:1e5},t===S.Binary&&(n.responseType="arraybuffer"),[4,this.getAccessToken()];case 1:return r=a.sent(),this.updateHeaderToken(n,r),o=e+"&_="+Date.now(),this.logger.log(c.a.Trace,"(LongPolling transport) polling: "+o+"."),[4,this.httpClient.get(o,n)];case 2:return 200!==(s=a.sent()).statusCode?(this.logger.log(c.a.Error,"(LongPolling transport) Unexpected response code: "+s.statusCode+"."),this.closeError=new i.b(s.statusText||"",s.statusCode),this.running=!1):this.running=!0,this.receiving=this.poll(this.url,n),[2]}})})},e.prototype.getAccessToken=function(){return k(this,void 0,void 0,function(){return x(this,function(e){switch(e.label){case 0:return this.accessTokenFactory?[4,this.accessTokenFactory()]:[3,2];case 1:return[2,e.sent()];case 2:return[2,null]}})})},e.prototype.updateHeaderToken=function(e,t){e.headers||(e.headers={}),t?e.headers.Authorization="Bearer "+t:e.headers.Authorization&&delete e.headers.Authorization},e.prototype.poll=function(e,t){return k(this,void 0,void 0,function(){var n,r,o,s;return x(this,function(a){switch(a.label){case 0:a.trys.push([0,,8,9]),a.label=1;case 1:return this.running?[4,this.getAccessToken()]:[3,7];case 2:n=a.sent(),this.updateHeaderToken(t,n),a.label=3;case 3:return a.trys.push([3,5,,6]),r=e+"&_="+Date.now(),this.logger.log(c.a.Trace,"(LongPolling transport) polling: "+r+"."),[4,this.httpClient.get(r,t)];case 4:return 204===(o=a.sent()).statusCode?(this.logger.log(c.a.Information,"(LongPolling transport) Poll terminated by server."),this.running=!1):200!==o.statusCode?(this.logger.log(c.a.Error,"(LongPolling transport) Unexpected response code: "+o.statusCode+"."),this.closeError=new i.b(o.statusText||"",o.statusCode),this.running=!1):o.content?(this.logger.log(c.a.Trace,"(LongPolling transport) data received. "+Object(g.f)(o.content,this.logMessageContent)+"."),this.onreceive&&this.onreceive(o.content)):this.logger.log(c.a.Trace,"(LongPolling transport) Poll timed out, reissuing."),[3,6];case 5:return s=a.sent(),this.running?s instanceof i.c?this.logger.log(c.a.Trace,"(LongPolling transport) Poll timed out, reissuing."):(this.closeError=s,this.running=!1):this.logger.log(c.a.Trace,"(LongPolling transport) Poll errored after shutdown: "+s.message),[3,6];case 6:return[3,1];case 7:return[3,9];case 8:return this.logger.log(c.a.Trace,"(LongPolling transport) Polling complete."),this.pollAborted||this.raiseOnClose(),[7];case 9:return[2]}})})},e.prototype.send=function(e){return k(this,void 0,void 0,function(){return x(this,function(t){return this.running?[2,Object(g.h)(this.logger,"LongPolling",this.httpClient,this.url,this.accessTokenFactory,e,this.logMessageContent)]:[2,Promise.reject(new Error("Cannot send until the transport is connected"))]})})},e.prototype.stop=function(){return k(this,void 0,void 0,function(){var e,t;return x(this,function(n){switch(n.label){case 0:this.logger.log(c.a.Trace,"(LongPolling transport) Stopping polling."),this.running=!1,this.pollAbort.abort(),n.label=1;case 1:return n.trys.push([1,,5,6]),[4,this.receiving];case 2:return n.sent(),this.logger.log(c.a.Trace,"(LongPolling transport) sending DELETE request to "+this.url+"."),e={headers:{}},[4,this.getAccessToken()];case 3:return t=n.sent(),this.updateHeaderToken(e,t),[4,this.httpClient.delete(this.url,e)];case 4:return n.sent(),this.logger.log(c.a.Trace,"(LongPolling transport) DELETE request sent."),[3,6];case 5:return this.logger.log(c.a.Trace,"(LongPolling transport) Stop finished."),this.raiseOnClose(),[7];case 6:return[2]}})})},e.prototype.raiseOnClose=function(){if(this.onclose){var e="(LongPolling transport) Firing onclose event.";this.closeError&&(e+=" Error: "+this.closeError),this.logger.log(c.a.Trace,e),this.onclose(this.closeError)}},e}(),R=function(e,t,n,r){return new(n||(n=Promise))(function(o,i){function s(e){try{c(r.next(e))}catch(e){i(e)}}function a(e){try{c(r.throw(e))}catch(e){i(e)}}function c(e){e.done?o(e.value):new n(function(t){t(e.value)}).then(s,a)}c((r=r.apply(e,t||[])).next())})},O=function(e,t){var n,r,o,i,s={label:0,sent:function(){if(1&o[0])throw o[1];return o[1]},trys:[],ops:[]};return i={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(i[Symbol.iterator]=function(){return this}),i;function a(i){return function(a){return function(i){if(n)throw new TypeError("Generator is already executing.");for(;s;)try{if(n=1,r&&(o=2&i[0]?r.return:i[0]?r.throw||((o=r.return)&&o.call(r),0):r.next)&&!(o=o.call(r,i[1])).done)return o;switch(r=0,o&&(i=[2&i[0],o.value]),i[0]){case 0:case 1:o=i;break;case 4:return s.label++,{value:i[1],done:!1};case 5:s.label++,r=i[1],i=[0];continue;case 7:i=s.ops.pop(),s.trys.pop();continue;default:if(!(o=(o=s.trys).length>0&&o[o.length-1])&&(6===i[0]||2===i[0])){s=0;continue}if(3===i[0]&&(!o||i[1]>o[0]&&i[1]<o[3])){s.label=i[1];break}if(6===i[0]&&s.label<o[1]){s.label=o[1],o=i;break}if(o&&s.label<o[2]){s.label=o[2],s.ops.push(i);break}o[2]&&s.ops.pop(),s.trys.pop();continue}i=t.call(e,s)}catch(e){i=[6,e],r=0}finally{n=o=0}if(5&i[0])throw i[1];return{value:i[0]?i[1]:void 0,done:!0}}([i,a])}}},D=function(){function e(e,t,n,r,o){this.httpClient=e,this.accessTokenFactory=t,this.logger=n,this.logMessageContent=r,this.eventSourceConstructor=o,this.onreceive=null,this.onclose=null}return e.prototype.connect=function(e,t){return R(this,void 0,void 0,function(){var n,r=this;return O(this,function(o){switch(o.label){case 0:return g.a.isRequired(e,"url"),g.a.isRequired(t,"transferFormat"),g.a.isIn(t,S,"transferFormat"),this.logger.log(c.a.Trace,"(SSE transport) Connecting."),this.url=e,this.accessTokenFactory?[4,this.accessTokenFactory()]:[3,2];case 1:(n=o.sent())&&(e+=(e.indexOf("?")<0?"?":"&")+"access_token="+encodeURIComponent(n)),o.label=2;case 2:return[2,new Promise(function(n,o){var i=!1;if(t===S.Text){var s;if(g.c.isBrowser||g.c.isWebWorker)s=new r.eventSourceConstructor(e,{withCredentials:!0});else{var a=r.httpClient.getCookieString(e);s=new r.eventSourceConstructor(e,{withCredentials:!0,headers:{Cookie:a}})}try{s.onmessage=function(e){if(r.onreceive)try{r.logger.log(c.a.Trace,"(SSE transport) data received. 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o[1]},trys:[],ops:[]};return i={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(i[Symbol.iterator]=function(){return this}),i;function a(i){return function(a){return function(i){if(n)throw new TypeError("Generator is already executing.");for(;s;)try{if(n=1,r&&(o=2&i[0]?r.return:i[0]?r.throw||((o=r.return)&&o.call(r),0):r.next)&&!(o=o.call(r,i[1])).done)return o;switch(r=0,o&&(i=[2&i[0],o.value]),i[0]){case 0:case 1:o=i;break;case 4:return s.label++,{value:i[1],done:!1};case 5:s.label++,r=i[1],i=[0];continue;case 7:i=s.ops.pop(),s.trys.pop();continue;default:if(!(o=(o=s.trys).length>0&&o[o.length-1])&&(6===i[0]||2===i[0])){s=0;continue}if(3===i[0]&&(!o||i[1]>o[0]&&i[1]<o[3])){s.label=i[1];break}if(6===i[0]&&s.label<o[1]){s.label=o[1],o=i;break}if(o&&s.label<o[2]){s.label=o[2],s.ops.push(i);break}o[2]&&s.ops.pop(),s.trys.pop();continue}i=t.call(e,s)}catch(e){i=[6,e],r=0}finally{n=o=0}if(5&i[0])throw i[1];return{value:i[0]?i[1]:void 0,done:!0}}([i,a])}}},U=null,N=null;if(g.c.isNode){var F=require;U=F("ws"),N=F("eventsource")}var H=function(){function e(e,t){void 0===t&&(t={}),this.features={},g.a.isRequired(e,"url"),this.logger=Object(g.e)(t.logger),this.baseUrl=this.resolveUrl(e),(t=t||{}).logMessageContent=t.logMessageContent||!1,g.c.isNode||"undefined"==typeof WebSocket||t.WebSocket?g.c.isNode&&!t.WebSocket&&U&&(t.WebSocket=U):t.WebSocket=WebSocket,g.c.isNode||"undefined"==typeof EventSource||t.EventSource?g.c.isNode&&!t.EventSource&&void 0!==N&&(t.EventSource=N):t.EventSource=EventSource,this.httpClient=t.httpClient||new h(this.logger),this.connectionState="Disconnected",this.connectionStarted=!1,this.options=t,this.onreceive=null,this.onclose=null}return e.prototype.start=function(e){return B(this,void 0,void 0,function(){var t;return j(this,function(n){switch(n.label){case 0:return e=e||S.Binary,g.a.isIn(e,S,"transferFormat"),this.logger.log(c.a.Debug,"Starting connection with transfer format 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State.")):(this.sendQueue||(this.sendQueue=new q(this.transport)),this.sendQueue.send(e))},e.prototype.stop=function(e){return B(this,void 0,void 0,function(){var t=this;return j(this,function(n){switch(n.label){case 0:return"Disconnected"===this.connectionState?(this.logger.log(c.a.Debug,"Call to HttpConnection.stop("+e+") ignored because the connection is already in the disconnected state."),[2,Promise.resolve()]):"Disconnecting"===this.connectionState?(this.logger.log(c.a.Debug,"Call to HttpConnection.stop("+e+") ignored because the connection is already in the disconnecting state."),[2,this.stopPromise]):(this.connectionState="Disconnecting",this.stopPromise=new Promise(function(e){t.stopPromiseResolver=e}),[4,this.stopInternal(e)]);case 1:return n.sent(),[4,this.stopPromise];case 2:return n.sent(),[2]}})})},e.prototype.stopInternal=function(e){return B(this,void 0,void 0,function(){var t,n;return j(this,function(r){switch(r.label){case 0:this.stopError=e,r.label=1;case 1:return r.trys.push([1,3,,4]),[4,this.startInternalPromise];case 2:return r.sent(),[3,4];case 3:return r.sent(),[3,4];case 4:if(!this.sendQueue)return[3,9];r.label=5;case 5:return r.trys.push([5,7,,8]),[4,this.sendQueue.stop()];case 6:return r.sent(),[3,8];case 7:return t=r.sent(),this.logger.log(c.a.Error,"TransportSendQueue.stop() threw error '"+t+"'."),[3,8];case 8:this.sendQueue=void 0,r.label=9;case 9:if(!this.transport)return[3,14];r.label=10;case 10:return r.trys.push([10,12,,13]),[4,this.transport.stop()];case 11:return r.sent(),[3,13];case 12:return n=r.sent(),this.logger.log(c.a.Error,"HttpConnection.transport.stop() threw error '"+n+"'."),this.stopConnection(),[3,13];case 13:return this.transport=void 0,[3,15];case 14:this.logger.log(c.a.Debug,"HttpConnection.transport is undefined in HttpConnection.stop() because start() failed."),this.stopConnection(),r.label=15;case 15:return[2]}})})},e.prototype.startInternal=function(e){return B(this,void 0,void 0,function(){var t,n,r,o,i,s;return j(this,function(a){switch(a.label){case 0:t=this.baseUrl,this.accessTokenFactory=this.options.accessTokenFactory,a.label=1;case 1:return a.trys.push([1,12,,13]),this.options.skipNegotiation?this.options.transport!==E.WebSockets?[3,3]:(this.transport=this.constructTransport(E.WebSockets),[4,this.startTransport(t,e)]):[3,5];case 2:return a.sent(),[3,4];case 3:throw new Error("Negotiation can only be skipped when using the WebSocket transport directly.");case 4:return[3,11];case 5:n=null,r=0,o=function(){var e;return j(this,function(o){switch(o.label){case 0:return[4,i.getNegotiationResponse(t)];case 1:if(n=o.sent(),"Disconnecting"===i.connectionState||"Disconnected"===i.connectionState)throw new Error("The connection was stopped during negotiation.");if(n.error)throw new Error(n.error);if(n.ProtocolVersion)throw new Error("Detected a connection attempt to an ASP.NET SignalR Server. This client only supports connecting to an ASP.NET Core SignalR Server. 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this.resetKeepAliveInterval(),this.connection.send(e)},e.prototype.sendWithProtocol=function(e){return this.sendMessage(this.protocol.writeMessage(e))},e.prototype.send=function(e){for(var t=[],n=1;n<arguments.length;n++)t[n-1]=arguments[n];var r=this.replaceStreamingParams(t),o=r[0],i=r[1],s=this.sendWithProtocol(this.createInvocation(e,t,!0,i));return this.launchStreams(o,s),s},e.prototype.invoke=function(e){for(var t=this,n=[],r=1;r<arguments.length;r++)n[r-1]=arguments[r];var i=this.replaceStreamingParams(n),s=i[0],a=i[1],c=this.createInvocation(e,n,!1,a);return new Promise(function(e,n){t.callbacks[c.invocationId]=function(t,r){r?n(r):t&&(t.type===o.Completion?t.error?n(new Error(t.error)):e(t.result):n(new Error("Unexpected message type: "+t.type)))};var r=t.sendWithProtocol(c).catch(function(e){n(e),delete t.callbacks[c.invocationId]});t.launchStreams(s,r)})},e.prototype.on=function(e,t){e&&t&&(e=e.toLowerCase(),this.methods[e]||(this.methods[e]=[]),-1===this.methods[e].indexOf(t)&&this.methods[e].push(t))},e.prototype.off=function(e,t){if(e){e=e.toLowerCase();var n=this.methods[e];if(n)if(t){var r=n.indexOf(t);-1!==r&&(n.splice(r,1),0===n.length&&delete this.methods[e])}else delete this.methods[e]}},e.prototype.onclose=function(e){e&&this.closedCallbacks.push(e)},e.prototype.onreconnecting=function(e){e&&this.reconnectingCallbacks.push(e)},e.prototype.onreconnected=function(e){e&&this.reconnectedCallbacks.push(e)},e.prototype.processIncomingData=function(e){if(this.cleanupTimeout(),this.receivedHandshakeResponse||(e=this.processHandshakeResponse(e),this.receivedHandshakeResponse=!0),e)for(var t=0,n=this.protocol.parseMessages(e,this.logger);t<n.length;t++){var r=n[t];switch(r.type){case o.Invocation:this.invokeClientMethod(r);break;case o.StreamItem:case o.Completion:var i=this.callbacks[r.invocationId];i&&(r.type===o.Completion&&delete this.callbacks[r.invocationId],i(r));break;case o.Ping:break;case o.Close:this.logger.log(c.a.Information,"Close message received from server."),this.stopPromise=this.stopInternal(r.error?new Error("Server returned an error on close: "+r.error):void 0);break;default:this.logger.log(c.a.Warning,"Invalid message type: "+r.type+".")}}this.resetTimeoutPeriod()},e.prototype.processHandshakeResponse=function(e){var t,n,r;try{r=(t=this.handshakeProtocol.parseHandshakeResponse(e))[0],n=t[1]}catch(e){var o="Error parsing handshake response: "+e;this.logger.log(c.a.Error,o);var i=new Error(o);throw this.handshakeRejecter(i),i}if(n.error){o="Server returned handshake error: "+n.error;this.logger.log(c.a.Error,o);i=new Error(o);throw this.handshakeRejecter(i),i}return this.logger.log(c.a.Debug,"Server handshake complete."),this.handshakeResolver(),r},e.prototype.resetKeepAliveInterval=function(){var e=this;this.cleanupPingTimer(),this.pingServerHandle=setTimeout(function(){return v(e,void 0,void 0,function(){return b(this,function(e){switch(e.label){case 0:if(this.connectionState!==d.Connected)return[3,4];e.label=1;case 1:return e.trys.push([1,3,,4]),[4,this.sendMessage(this.cachedPingMessage)];case 2:return e.sent(),[3,4];case 3:return e.sent(),this.cleanupPingTimer(),[3,4];case 4:return[2]}})})},this.keepAliveIntervalInMilliseconds)},e.prototype.resetTimeoutPeriod=function(){var e=this;this.connection.features&&this.connection.features.inherentKeepAlive||(this.timeoutHandle=setTimeout(function(){return e.serverTimeout()},this.serverTimeoutInMilliseconds))},e.prototype.serverTimeout=function(){this.connection.stop(new Error("Server timeout elapsed without receiving a message from the server."))},e.prototype.invokeClientMethod=function(e){var t=this,n=this.methods[e.target.toLowerCase()];if(n){try{n.forEach(function(n){return n.apply(t,e.arguments)})}catch(t){this.logger.log(c.a.Error,"A callback for the method "+e.target.toLowerCase()+" threw error '"+t+"'.")}if(e.invocationId){var r="Server requested a response, which is not supported in this version of the client.";this.logger.log(c.a.Error,r),this.stopPromise=this.stopInternal(new Error(r))}}else this.logger.log(c.a.Warning,"No client method with the name '"+e.target+"' found.")},e.prototype.connectionClosed=function(e){this.logger.log(c.a.Debug,"HubConnection.connectionClosed("+e+") called while in state "+this.connectionState+"."),this.stopDuringStartError=this.stopDuringStartError||e||new Error("The underlying connection was closed before the hub handshake could complete."),this.handshakeResolver&&this.handshakeResolver(),this.cancelCallbacksWithError(e||new Error("Invocation canceled due to the underlying connection being 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t,n,r,o,i,s;return j(this,function(a){switch(a.label){case 0:t=this.baseUrl,this.accessTokenFactory=this.options.accessTokenFactory,a.label=1;case 1:return a.trys.push([1,12,,13]),this.options.skipNegotiation?this.options.transport!==E.WebSockets?[3,3]:(this.transport=this.constructTransport(E.WebSockets),[4,this.startTransport(t,e)]):[3,5];case 2:return a.sent(),[3,4];case 3:throw new Error("Negotiation can only be skipped when using the WebSocket transport directly.");case 4:return[3,11];case 5:n=null,r=0,o=function(){var e;return j(this,function(o){switch(o.label){case 0:return[4,i.getNegotiationResponse(t)];case 1:if(n=o.sent(),"Disconnecting"===i.connectionState||"Disconnected"===i.connectionState)throw new Error("The connection was stopped during negotiation.");if(n.error)throw new Error(n.error);if(n.ProtocolVersion)throw new Error("Detected a connection attempt to an ASP.NET SignalR Server. 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"+i.join(" ")))]:[2,Promise.reject(new Error("None of the transports supported by the client are supported by the server."))]}})})},e.prototype.constructTransport=function(e){switch(e){case E.WebSockets:if(!this.options.WebSocket)throw new Error("'WebSocket' is not supported in your environment.");return new A(this.httpClient,this.accessTokenFactory,this.logger,this.options.logMessageContent||!1,this.options.WebSocket);case E.ServerSentEvents:if(!this.options.EventSource)throw new Error("'EventSource' is not supported in your environment.");return new D(this.httpClient,this.accessTokenFactory,this.logger,this.options.logMessageContent||!1,this.options.EventSource);case E.LongPolling:return new P(this.httpClient,this.accessTokenFactory,this.logger,this.options.logMessageContent||!1);default:throw new Error("Unknown transport: "+e+".")}},e.prototype.startTransport=function(e,t){var n=this;return this.transport.onreceive=this.onreceive,this.transport.onclose=function(e){return 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o[1]},trys:[],ops:[]};return i={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(i[Symbol.iterator]=function(){return this}),i;function a(i){return function(a){return function(i){if(n)throw new TypeError("Generator is already executing.");for(;s;)try{if(n=1,r&&(o=2&i[0]?r.return:i[0]?r.throw||((o=r.return)&&o.call(r),0):r.next)&&!(o=o.call(r,i[1])).done)return o;switch(r=0,o&&(i=[2&i[0],o.value]),i[0]){case 0:case 1:o=i;break;case 4:return s.label++,{value:i[1],done:!1};case 5:s.label++,r=i[1],i=[0];continue;case 7:i=s.ops.pop(),s.trys.pop();continue;default:if(!(o=(o=s.trys).length>0&&o[o.length-1])&&(6===i[0]||2===i[0])){s=0;continue}if(3===i[0]&&(!o||i[1]>o[0]&&i[1]<o[3])){s.label=i[1];break}if(6===i[0]&&s.label<o[1]){s.label=o[1],o=i;break}if(o&&s.label<o[2]){s.label=o[2],s.ops.push(i);break}o[2]&&s.ops.pop(),s.trys.pop();continue}i=t.call(e,s)}catch(e){i=[6,e],r=0}finally{n=o=0}if(5&i[0])throw i[1];return{value:i[0]?i[1]:void 0,done:!0}}([i,a])}}};Object.defineProperty(t,"__esModule",{value:!0});var i=n(16),s=function(){function e(e,t,n){var s=this;this.document=t,this.logger=n,this.addedToDom=!1,this.modal=this.document.createElement("div"),this.modal.id=e;this.modal.style.cssText=["position: fixed","top: 0","right: 0","bottom: 0","left: 0","z-index: 1000","display: none","overflow: hidden","background-color: #fff","opacity: 0.8","text-align: center","font-weight: bold"].join(";"),this.modal.innerHTML='<h5 style="margin-top: 20px"></h5><button style="margin:5px auto 5px">Retry</button><p>Alternatively, <a href>reload</a></p>',this.message=this.modal.querySelector("h5"),this.button=this.modal.querySelector("button"),this.reloadParagraph=this.modal.querySelector("p"),this.button.addEventListener("click",function(){return r(s,void 0,void 0,function(){var e;return o(this,function(t){switch(t.label){case 0:this.show(),t.label=1;case 1:return t.trys.push([1,3,,4]),[4,window.Blazor.reconnect()];case 2:return t.sent()||this.rejected(),[3,4];case 3:return e=t.sent(),this.logger.log(i.LogLevel.Error,e),this.failed(),[3,4];case 4:return[2]}})})}),this.reloadParagraph.querySelector("a").addEventListener("click",function(){return location.reload()})}return e.prototype.show=function(){this.addedToDom||(this.addedToDom=!0,this.document.body.appendChild(this.modal)),this.modal.style.display="block",this.button.style.display="none",this.reloadParagraph.style.display="none",this.message.textContent="Attempting to reconnect to the server..."},e.prototype.hide=function(){this.modal.style.display="none"},e.prototype.failed=function(){this.button.style.display="block",this.reloadParagraph.style.display="none",this.message.innerHTML="Reconnection failed. Try <a href>reloading</a> the page if you're unable to reconnect.",this.message.querySelector("a").addEventListener("click",function(){return location.reload()})},e.prototype.rejected=function(){this.button.style.display="none",this.reloadParagraph.style.display="none",this.message.innerHTML="Could not reconnect to the server. <a href>Reload</a> the page to restore functionality.",this.message.querySelector("a").addEventListener("click",function(){return location.reload()})},e}();t.DefaultReconnectDisplay=s},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var r=function(){function e(e){this.dialog=e}return e.prototype.show=function(){this.removeClasses(),this.dialog.classList.add(e.ShowClassName)},e.prototype.hide=function(){this.removeClasses(),this.dialog.classList.add(e.HideClassName)},e.prototype.failed=function(){this.removeClasses(),this.dialog.classList.add(e.FailedClassName)},e.prototype.rejected=function(){this.removeClasses(),this.dialog.classList.add(e.RejectedClassName)},e.prototype.removeClasses=function(){this.dialog.classList.remove(e.ShowClassName,e.HideClassName,e.FailedClassName,e.RejectedClassName)},e.ShowClassName="components-reconnect-show",e.HideClassName="components-reconnect-hide",e.FailedClassName="components-reconnect-failed",e.RejectedClassName="components-reconnect-rejected",e}();t.UserSpecifiedDisplay=r},function(e,t,n){"use strict";n.r(t);var r=n(6),o=n(12),i=n(2),s=function(){function e(){}return e.write=function(e){var t=e.byteLength||e.length,n=[];do{var r=127&t;(t>>=7)>0&&(r|=128),n.push(r)}while(t>0);t=e.byteLength||e.length;var o=new Uint8Array(n.length+t);return o.set(n,0),o.set(e,n.length),o.buffer},e.parse=function(e){for(var t=[],n=new Uint8Array(e),r=[0,7,14,21,28],o=0;o<e.byteLength;){var i=0,s=0,a=void 0;do{s|=(127&(a=n[o+i]))<<r[i],i++}while(i<Math.min(5,e.byteLength-o)&&0!=(128&a));if(0!=(128&a)&&i<5)throw new Error("Cannot read message size.");if(5===i&&a>7)throw new Error("Messages bigger than 2GB are not supported.");if(!(n.byteLength>=o+i+s))throw new Error("Incomplete message.");t.push(n.slice?n.slice(o+i,o+i+s):n.subarray(o+i,o+i+s)),o=o+i+s}return t},e}();var a=new Uint8Array([145,i.MessageType.Ping]),c=function(){function e(){this.name="messagepack",this.version=1,this.transferFormat=i.TransferFormat.Binary,this.errorResult=1,this.voidResult=2,this.nonVoidResult=3}return e.prototype.parseMessages=function(e,t){if(!(e instanceof r.Buffer||(n=e,n&&"undefined"!=typeof ArrayBuffer&&(n instanceof ArrayBuffer||n.constructor&&"ArrayBuffer"===n.constructor.name))))throw new Error("Invalid input for MessagePack hub protocol. Expected an ArrayBuffer or Buffer.");var n;null===t&&(t=i.NullLogger.instance);for(var o=[],a=0,c=s.parse(e);a<c.length;a++){var u=c[a],l=this.parseMessage(u,t);l&&o.push(l)}return o},e.prototype.writeMessage=function(e){switch(e.type){case i.MessageType.Invocation:return this.writeInvocation(e);case i.MessageType.StreamInvocation:return this.writeStreamInvocation(e);case i.MessageType.StreamItem:return this.writeStreamItem(e);case i.MessageType.Completion:return this.writeCompletion(e);case i.MessageType.Ping:return s.write(a);case i.MessageType.CancelInvocation:return this.writeCancelInvocation(e);default:throw new Error("Invalid message type.")}},e.prototype.parseMessage=function(e,t){if(0===e.length)throw new Error("Invalid payload.");var n=o().decode(r.Buffer.from(e));if(0===n.length||!(n instanceof Array))throw new Error("Invalid payload.");var s=n[0];switch(s){case i.MessageType.Invocation:return this.createInvocationMessage(this.readHeaders(n),n);case i.MessageType.StreamItem:return this.createStreamItemMessage(this.readHeaders(n),n);case i.MessageType.Completion:return this.createCompletionMessage(this.readHeaders(n),n);case i.MessageType.Ping:return this.createPingMessage(n);case i.MessageType.Close:return this.createCloseMessage(n);default:return t.log(i.LogLevel.Information,"Unknown message type '"+s+"' ignored."),null}},e.prototype.createCloseMessage=function(e){if(e.length<2)throw new Error("Invalid payload for Close message.");return{error:e[1],type:i.MessageType.Close}},e.prototype.createPingMessage=function(e){if(e.length<1)throw new Error("Invalid payload for Ping message.");return{type:i.MessageType.Ping}},e.prototype.createInvocationMessage=function(e,t){if(t.length<5)throw new Error("Invalid payload for Invocation message.");var n=t[2];return n?{arguments:t[4],headers:e,invocationId:n,streamIds:[],target:t[3],type:i.MessageType.Invocation}:{arguments:t[4],headers:e,streamIds:[],target:t[3],type:i.MessageType.Invocation}},e.prototype.createStreamItemMessage=function(e,t){if(t.length<4)throw new Error("Invalid payload for StreamItem message.");return{headers:e,invocationId:t[2],item:t[3],type:i.MessageType.StreamItem}},e.prototype.createCompletionMessage=function(e,t){if(t.length<4)throw new Error("Invalid payload for Completion message.");var n,r,o=t[3];if(o!==this.voidResult&&t.length<5)throw new Error("Invalid payload for Completion message.");switch(o){case this.errorResult:n=t[4];break;case this.nonVoidResult:r=t[4]}return{error:n,headers:e,invocationId:t[2],result:r,type:i.MessageType.Completion}},e.prototype.writeInvocation=function(e){var t=o().encode([i.MessageType.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments,e.streamIds]);return s.write(t.slice())},e.prototype.writeStreamInvocation=function(e){var t=o().encode([i.MessageType.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments,e.streamIds]);return s.write(t.slice())},e.prototype.writeStreamItem=function(e){var t=o().encode([i.MessageType.StreamItem,e.headers||{},e.invocationId,e.item]);return s.write(t.slice())},e.prototype.writeCompletion=function(e){var t,n=o(),r=e.error?this.errorResult:e.result?this.nonVoidResult:this.voidResult;switch(r){case this.errorResult:t=n.encode([i.MessageType.Completion,e.headers||{},e.invocationId,r,e.error]);break;case this.voidResult:t=n.encode([i.MessageType.Completion,e.headers||{},e.invocationId,r]);break;case this.nonVoidResult:t=n.encode([i.MessageType.Completion,e.headers||{},e.invocationId,r,e.result])}return s.write(t.slice())},e.prototype.writeCancelInvocation=function(e){var t=o().encode([i.MessageType.CancelInvocation,e.headers||{},e.invocationId]);return s.write(t.slice())},e.prototype.readHeaders=function(e){var t=e[1];if("object"!=typeof t)throw new Error("Invalid headers.");return t},e}();n.d(t,"VERSION",function(){return u}),n.d(t,"MessagePackHubProtocol",function(){return c});var u="3.1.0-dev"}]);
\ No newline at end of file
diff --git a/src/Shared/E2ETesting/BrowserFixture.cs b/src/Shared/E2ETesting/BrowserFixture.cs
index 0fa652994f..7808176318 100644
--- a/src/Shared/E2ETesting/BrowserFixture.cs
+++ b/src/Shared/E2ETesting/BrowserFixture.cs
@@ -108,7 +108,7 @@ namespace Microsoft.AspNetCore.E2ETesting
             var instance = await SeleniumStandaloneServer.GetInstanceAsync(output);
 
             var attempt = 0;
-            var maxAttempts = 3;
+            const int maxAttempts = 3;
             do
             {
                 try
@@ -132,18 +132,16 @@ namespace Microsoft.AspNetCore.E2ETesting
 
                     return (driver, logs);
                 }
-                catch
+                catch (Exception ex)
                 {
-                    if (attempt >= maxAttempts)
-                    {
-                        throw new InvalidOperationException("Couldn't create a Selenium remote driver client. The server is irresponsive");
-                    }
+                    output.WriteLine($"Error initializing RemoteWebDriver: {ex.Message}");
                 }
+
                 attempt++;
+
             } while (attempt < maxAttempts);
 
-            // We will never get here. Keeping the compiler happy.
-            throw new InvalidOperationException("Couldn't create a Selenium remote driver client. The server is unresponsive");
+            throw new InvalidOperationException("Couldn't create a Selenium remote driver client. The server is irresponsive");
         }
     }
 }