diff --git a/src/Components/Browser.JS/dist/Release/blazor.server.js b/src/Components/Browser.JS/dist/Release/blazor.server.js
index 8eedc1db94..e680c861d0 100644
--- a/src/Components/Browser.JS/dist/Release/blazor.server.js
+++ b/src/Components/Browser.JS/dist/Release/blazor.server.js
@@ -1,4 +1,4 @@
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t,n,r,o,i,a,s=this;return j(this,function(u){switch(u.label){case 0:t=this.baseUrl,this.accessTokenFactory=this.options.accessTokenFactory,u.label=1;case 1:return u.trys.push([1,12,,13]),this.options.skipNegotiation?this.options.transport!==E.WebSockets?[3,3]:(this.transport=this.constructTransport(E.WebSockets),[4,this.transport.connect(t,e)]):[3,5];case 2:return u.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 O(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.resolveTransport=function(e,t,n){var r=E[e.transport];if(null!=r){var o=e.transferFormats.map(function(e){return S[e]});if(function(e,t){return!e||0!=(t&e)}(t,r)){if(o.indexOf(n)>=0){if(r===E.WebSockets&&!this.options.WebSocket||r===E.ServerSentEvents&&!this.options.EventSource)throw this.logger.log(c.a.Debug,"Skipping transport '"+E[r]+"' because it is not supported in your environment.'"),new Error("'"+E[r]+"' is not supported in your environment.");return this.logger.log(c.a.Debug,"Selecting transport '"+E[r]+"'."),r}throw this.logger.log(c.a.Debug,"Skipping transport '"+E[r]+"' because it does not support the requested transfer format '"+S[n]+"'."),new Error("'"+E[r]+"' does not support "+S[n]+".")}throw this.logger.log(c.a.Debug,"Skipping transport '"+E[r]+"' because it was disabled by the client."),new Error("'"+E[r]+"' is disabled by the client.")}return this.logger.log(c.a.Debug,"Skipping transport '"+e.transport+"' because it is not supported by this client."),null},e.prototype.isITransport=function(e){return e&&"object"==typeof e&&"connect"in e},e.prototype.stopConnection=function(e){if(this.logger.log(c.a.Debug,"HttpConnection.stopConnection("+e+") called while in state "+this.connectionState+"."),this.transport=void 0,e=this.stopError||e,this.stopError=void 0,"Disconnected"!==this.connectionState)if("Connecting "!==this.connectionState){if("Disconnecting"===this.connectionState&&this.stopPromiseResolver(),e?this.logger.log(c.a.Error,"Connection disconnected with error '"+e+"'."):this.logger.log(c.a.Information,"Connection disconnected."),this.connectionId=void 0,this.connectionState="Disconnected",this.onclose&&this.connectionStarted){this.connectionStarted=!1;try{this.onclose(e)}catch(t){this.logger.log(c.a.Error,"HttpConnection.onclose("+e+") threw error '"+t+"'.")}}}else this.logger.log(c.a.Warning,"Call to HttpConnection.stopConnection("+e+") was ignored because the connection hasn't yet left the in the connecting state.");else this.logger.log(c.a.Debug,"Call to HttpConnection.stopConnection("+e+") was ignored because 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"+Object(g.f)(e,this.logMessageContent)+"."),this.webSocket.send(e),Promise.resolve()):Promise.reject("WebSocket is not in the OPEN state")},e.prototype.stop=function(){return this.webSocket&&(this.webSocket.onclose=function(){},this.webSocket.onmessage=function(){},this.webSocket.onerror=function(){},this.webSocket.close(),this.webSocket=void 0,this.close(void 0)),Promise.resolve()},e.prototype.close=function(e){this.logger.log(c.a.Trace,"(WebSockets transport) socket closed."),this.onclose&&(!e||!1!==e.wasClean&&1e3===e.code?this.onclose():this.onclose(new Error("WebSocket closed with status code: "+e.code+" ("+e.reason+").")))},e}(),B=function(e,t,n,r){return new(n||(n=Promise))(function(o,i){function a(e){try{c(r.next(e))}catch(e){i(e)}}function s(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(a,s)}c((r=r.apply(e,t||[])).next())})},j=function(e,t){var n,r,o,i,a={label:0,sent:function(){if(1&o[0])throw o[1];return 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0,done:!0}}([i,s])}}},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,a,s=this;return j(this,function(u){switch(u.label){case 0:t=this.baseUrl,this.accessTokenFactory=this.options.accessTokenFactory,u.label=1;case 1:return u.trys.push([1,12,,13]),this.options.skipNegotiation?this.options.transport!==E.WebSockets?[3,3]:(this.transport=this.constructTransport(E.WebSockets),[4,this.transport.connect(t,e)]):[3,5];case 2:return u.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. See https://aka.ms/signalr-core-differences for details.");return n.url&&(t=n.url),n.accessToken&&(e=n.accessToken,i.accessTokenFactory=function(){return e}),r++,[2]}})},i=this,u.label=6;case 6:return[5,o()];case 7:u.sent(),u.label=8;case 8:if(n.url&&r<100)return[3,6];u.label=9;case 9:if(100===r&&n.url)throw new Error("Negotiate redirection limit exceeded.");return this.connectionId=n.connectionId,[4,this.createTransport(t,this.options.transport,n,e)];case 10:u.sent(),u.label=11;case 11:return this.transport instanceof P&&(this.features.inherentKeepAlive=!0),this.transport.onreceive=this.onreceive,this.transport.onclose=function(e){return s.stopConnection(e)},"Connecting "===this.connectionState&&(this.logger.log(c.a.Debug,"The HttpConnection connected successfully."),this.connectionState="Connected"),[3,13];case 12:return a=u.sent(),this.logger.log(c.a.Error,"Failed to start the connection: "+a),this.connectionState="Disconnected",this.transport=void 0,[2,Promise.reject(a)];case 13:return[2]}})})},e.prototype.getNegotiationResponse=function(e){return B(this,void 0,void 0,function(){var t,n,r,o,i,a;return j(this,function(s){switch(s.label){case 0:return this.accessTokenFactory?[4,this.accessTokenFactory()]:[3,2];case 1:(r=s.sent())&&((t={}).Authorization="Bearer "+r,n=t),s.label=2;case 2:o=this.resolveNegotiateUrl(e),this.logger.log(c.a.Debug,"Sending negotiation request: "+o+"."),s.label=3;case 3:return s.trys.push([3,5,,6]),[4,this.httpClient.post(o,{content:"",headers:n})];case 4:return 200!==(i=s.sent()).statusCode?[2,Promise.reject(new Error("Unexpected status code returned from negotiate "+i.statusCode))]:[2,JSON.parse(i.content)];case 5:return a=s.sent(),this.logger.log(c.a.Error,"Failed to complete negotiation with the server: "+a),[2,Promise.reject(a)];case 6:return[2]}})})},e.prototype.createConnectUrl=function(e,t){return t?e+(-1===e.indexOf("?")?"?":"&")+"id="+t:e},e.prototype.createTransport=function(e,t,n,r){return B(this,void 0,void 0,function(){var o,i,a,s,u,l,f,h,p;return j(this,function(d){switch(d.label){case 0:return o=this.createConnectUrl(e,n.connectionId),this.isITransport(t)?(this.logger.log(c.a.Debug,"Connection was provided an instance of ITransport, using that directly."),this.transport=t,[4,this.transport.connect(o,r)]):[3,2];case 1:return d.sent(),[2];case 2:i=[],a=n.availableTransports||[],s=0,u=a,d.label=3;case 3:if(!(s<u.length))return[3,11];l=u[s],d.label=4;case 4:return d.trys.push([4,9,,10]),"number"!=typeof(f=this.resolveTransport(l,t,r))?[3,8]:(this.transport=this.constructTransport(f),n.connectionId?[3,6]:[4,this.getNegotiationResponse(e)]);case 5:n=d.sent(),o=this.createConnectUrl(e,n.connectionId),d.label=6;case 6:return[4,this.transport.connect(o,r)];case 7:return d.sent(),[2];case 8:return[3,10];case 9:return h=d.sent(),this.logger.log(c.a.Error,"Failed to start the transport '"+l.transport+"': "+h),n.connectionId=void 0,i.push(l.transport+" failed: "+h),"Connecting "!==this.connectionState?(p="Failed to select transport before stop() was called.",this.logger.log(c.a.Debug,p),[2,Promise.reject(new Error(p))]):[3,10];case 10:return s++,[3,3];case 11:return i.length>0?[2,Promise.reject(new Error("Unable to connect to the server with any of the available transports. "+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 O(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.resolveTransport=function(e,t,n){var r=E[e.transport];if(null!=r){var o=e.transferFormats.map(function(e){return S[e]});if(function(e,t){return!e||0!=(t&e)}(t,r)){if(o.indexOf(n)>=0){if(r===E.WebSockets&&!this.options.WebSocket||r===E.ServerSentEvents&&!this.options.EventSource)throw this.logger.log(c.a.Debug,"Skipping transport '"+E[r]+"' because it is not supported in your environment.'"),new Error("'"+E[r]+"' is not supported in your environment.");return this.logger.log(c.a.Debug,"Selecting transport '"+E[r]+"'."),r}throw this.logger.log(c.a.Debug,"Skipping transport '"+E[r]+"' because it does not support the requested transfer format '"+S[n]+"'."),new Error("'"+E[r]+"' does not support "+S[n]+".")}throw this.logger.log(c.a.Debug,"Skipping transport '"+E[r]+"' because it was disabled by the client."),new Error("'"+E[r]+"' is disabled by the client.")}return this.logger.log(c.a.Debug,"Skipping transport '"+e.transport+"' because it is not supported by this client."),null},e.prototype.isITransport=function(e){return e&&"object"==typeof e&&"connect"in e},e.prototype.stopConnection=function(e){if(this.logger.log(c.a.Debug,"HttpConnection.stopConnection("+e+") called while in state "+this.connectionState+"."),this.transport=void 0,e=this.stopError||e,this.stopError=void 0,"Disconnected"!==this.connectionState)if("Connecting "!==this.connectionState){if("Disconnecting"===this.connectionState&&this.stopPromiseResolver(),e?this.logger.log(c.a.Error,"Connection disconnected with error '"+e+"'."):this.logger.log(c.a.Information,"Connection disconnected."),this.connectionId=void 0,this.connectionState="Disconnected",this.onclose&&this.connectionStarted){this.connectionStarted=!1;try{this.onclose(e)}catch(t){this.logger.log(c.a.Error,"HttpConnection.onclose("+e+") threw error '"+t+"'.")}}}else this.logger.log(c.a.Warning,"Call to HttpConnection.stopConnection("+e+") was ignored because the connection hasn't yet left the in the connecting state.");else this.logger.log(c.a.Debug,"Call to HttpConnection.stopConnection("+e+") was ignored because the connection is already in the disconnected state.")},e.prototype.resolveUrl=function(e){if(0===e.lastIndexOf("https://",0)||0===e.lastIndexOf("http://",0))return e;if(!g.c.isBrowser||!window.document)throw new Error("Cannot resolve '"+e+"'.");var t=window.document.createElement("a");return t.href=e,this.logger.log(c.a.Information,"Normalizing '"+e+"' to '"+t.href+"'."),t.href},e.prototype.resolveNegotiateUrl=function(e){var t=e.indexOf("?"),n=e.substring(0,-1===t?e.length:t);return"/"!==n[n.length-1]&&(n+="/"),n+="negotiate",n+=-1===t?"":e.substring(t)},e}();var q=function(){function e(e){this.transport=e,this.buffer=[],this.executing=!0,this.sendBufferedData=new W,this.transportResult=new W,this.sendLoopPromise=this.sendLoop()}return e.prototype.send=function(e){return this.bufferData(e),this.transportResult||(this.transportResult=new W),this.transportResult.promise},e.prototype.stop=function(){return this.executing=!1,this.sendBufferedData.resolve(),this.sendLoopPromise},e.prototype.bufferData=function(e){if(this.buffer.length&&typeof this.buffer[0]!=typeof e)throw new Error("Expected data to be of type "+typeof this.buffer+" but was of type "+typeof e);this.buffer.push(e),this.sendBufferedData.resolve()},e.prototype.sendLoop=function(){return B(this,void 0,void 0,function(){var t,n,r;return j(this,function(o){switch(o.label){case 0:return[4,this.sendBufferedData.promise];case 1:if(o.sent(),!this.executing)return this.transportResult&&this.transportResult.reject("Connection stopped."),[3,6];this.sendBufferedData=new W,t=this.transportResult,this.transportResult=void 0,n="string"==typeof this.buffer[0]?this.buffer.join(""):e.concatBuffers(this.buffer),this.buffer.length=0,o.label=2;case 2:return o.trys.push([2,4,,5]),[4,this.transport.send(n)];case 3:return o.sent(),t.resolve(),[3,5];case 4:return r=o.sent(),t.reject(r),[3,5];case 5:return[3,0];case 6:return[2]}})})},e.concatBuffers=function(e){for(var t=e.map(function(e){return e.byteLength}).reduce(function(e,t){return e+t}),n=new Uint8Array(t),r=0,o=0,i=e;o<i.length;o++){var a=i[o];n.set(new Uint8Array(a),r),r+=a.byteLength}return n},e}(),W=function(){function e(){var e=this;this.promise=new Promise(function(t,n){var r;return r=[t,n],e.resolver=r[0],e.rejecter=r[1],r})}return e.prototype.resolve=function(){this.resolver()},e.prototype.reject=function(e){this.rejecter(e)},e}(),Y=n(6),z=n(7),K="json",J=function(){function e(){this.name=K,this.version=1,this.transferFormat=S.Text}return e.prototype.parseMessages=function(e,t){if("string"!=typeof e)throw new Error("Invalid input for JSON hub protocol. Expected a string.");if(!e)return[];null===t&&(t=Y.a.instance);for(var n=[],r=0,i=z.a.parse(e);r<i.length;r++){var a=i[r],s=JSON.parse(a);if("number"!=typeof s.type)throw new Error("Invalid payload.");switch(s.type){case o.Invocation:this.isInvocationMessage(s);break;case o.StreamItem:this.isStreamItemMessage(s);break;case o.Completion:this.isCompletionMessage(s);break;case o.Ping:case o.Close:break;default:t.log(c.a.Information,"Unknown message type '"+s.type+"' ignored.");continue}n.push(s)}return n},e.prototype.writeMessage=function(e){return z.a.write(JSON.stringify(e))},e.prototype.isInvocationMessage=function(e){this.assertNotEmptyString(e.target,"Invalid payload for Invocation message."),void 0!==e.invocationId&&this.assertNotEmptyString(e.invocationId,"Invalid payload for Invocation message.")},e.prototype.isStreamItemMessage=function(e){if(this.assertNotEmptyString(e.invocationId,"Invalid payload for StreamItem message."),void 0===e.item)throw new Error("Invalid payload for StreamItem message.")},e.prototype.isCompletionMessage=function(e){if(e.result&&e.error)throw new Error("Invalid payload for Completion message.");!e.result&&e.error&&this.assertNotEmptyString(e.error,"Invalid payload for Completion message."),this.assertNotEmptyString(e.invocationId,"Invalid payload for Completion message.")},e.prototype.assertNotEmptyString=function(e,t){if("string"!=typeof e||""===e)throw new Error(t)},e}(),X=Object.assign||function(e){for(var t,n=1,r=arguments.length;n<r;n++)for(var o in t=arguments[n])Object.prototype.hasOwnProperty.call(t,o)&&(e[o]=t[o]);return e},V={trace:c.a.Trace,debug:c.a.Debug,info:c.a.Information,information:c.a.Information,warn:c.a.Warning,warning:c.a.Warning,error:c.a.Error,critical:c.a.Critical,none:c.a.None};var G=function(){function e(){}return e.prototype.configureLogging=function(e){if(g.a.isRequired(e,"logging"),void 0!==e.log)this.logger=e;else if("string"==typeof e){var t=function(e){var t=V[e.toLowerCase()];if(void 0!==t)return t;throw new Error("Unknown log level: "+e)}(e);this.logger=new g.b(t)}else this.logger=new g.b(e);return this},e.prototype.withUrl=function(e,t){return g.a.isRequired(e,"url"),this.url=e,this.httpConnectionOptions=X({},this.httpConnectionOptions,"object"==typeof t?t:{transport:t}),this},e.prototype.withHubProtocol=function(e){return g.a.isRequired(e,"protocol"),this.protocol=e,this},e.prototype.withAutomaticReconnect=function(e){if(this.reconnectPolicy)throw new Error("A reconnectPolicy has already been set.");return e?Array.isArray(e)?this.reconnectPolicy=new _(e):this.reconnectPolicy=e:this.reconnectPolicy=new _,this},e.prototype.build=function(){var e=this.httpConnectionOptions||{};if(void 0===e.logger&&(e.logger=this.logger),!this.url)throw new Error("The 'HubConnectionBuilder.withUrl' method must be called before building the connection.");var t=new H(this.url,e);return C.create(t,this.logger||Y.a.instance,this.protocol||new J,this.reconnectPolicy)},e}();n.d(t,"VERSION",function(){return Q}),n.d(t,"AbortError",function(){return i.a}),n.d(t,"HttpError",function(){return i.b}),n.d(t,"TimeoutError",function(){return i.c}),n.d(t,"HttpClient",function(){return a.a}),n.d(t,"HttpResponse",function(){return a.b}),n.d(t,"DefaultHttpClient",function(){return h}),n.d(t,"HubConnection",function(){return C}),n.d(t,"HubConnectionState",function(){return d}),n.d(t,"HubConnectionBuilder",function(){return G}),n.d(t,"MessageType",function(){return o}),n.d(t,"LogLevel",function(){return c.a}),n.d(t,"HttpTransportType",function(){return E}),n.d(t,"TransferFormat",function(){return S}),n.d(t,"NullLogger",function(){return Y.a}),n.d(t,"JsonHubProtocol",function(){return J}),n.d(t,"Subject",function(){return y});var Q="0.0.0-DEV_BUILD"},function(e,t,n){"use strict";n.d(t,"b",function(){return i}),n.d(t,"c",function(){return a}),n.d(t,"a",function(){return s});var r,o=(r=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])},function(e,t){function n(){this.constructor=e}r(e,t),e.prototype=null===t?Object.create(t):(n.prototype=t.prototype,new n)}),i=function(e){function t(t,n){var r=this,o=this.constructor.prototype;return(r=e.call(this,t)||this).statusCode=n,r.__proto__=o,r}return o(t,e),t}(Error),a=function(e){function t(t){void 0===t&&(t="A timeout occurred.");var n=this,r=this.constructor.prototype;return(n=e.call(this,t)||this).__proto__=r,n}return o(t,e),t}(Error),s=function(e){function t(t){void 0===t&&(t="An abort occurred.");var n=this,r=this.constructor.prototype;return(n=e.call(this,t)||this).__proto__=r,n}return o(t,e),t}(Error)},function(e,t,n){"use strict";n.d(t,"b",function(){return o}),n.d(t,"a",function(){return i});var r=Object.assign||function(e){for(var t,n=1,r=arguments.length;n<r;n++)for(var o in t=arguments[n])Object.prototype.hasOwnProperty.call(t,o)&&(e[o]=t[o]);return e},o=function(){return function(e,t,n){this.statusCode=e,this.statusText=t,this.content=n}}(),i=function(){function e(){}return e.prototype.get=function(e,t){return this.send(r({},t,{method:"GET",url:e}))},e.prototype.post=function(e,t){return this.send(r({},t,{method:"POST",url:e}))},e.prototype.delete=function(e,t){return this.send(r({},t,{method:"DELETE",url:e}))},e.prototype.getCookieString=function(e){return""},e}()},function(e,t,n){"use strict";(function(e){
 /*!
  * The buffer module from node.js, for the browser.
  *
diff --git a/src/SignalR/clients/ts/FunctionalTests/ts/HubConnectionTests.ts b/src/SignalR/clients/ts/FunctionalTests/ts/HubConnectionTests.ts
index 537c6c4113..4684b3ae0e 100644
--- a/src/SignalR/clients/ts/FunctionalTests/ts/HubConnectionTests.ts
+++ b/src/SignalR/clients/ts/FunctionalTests/ts/HubConnectionTests.ts
@@ -750,6 +750,36 @@ describe("hubConnection", () => {
                 }
             });
         });
+
+        it("can change url in reconnecting state", async (done) => {
+            try {
+                const reconnectingPromise = new PromiseSource();
+                const hubConnection = getConnectionBuilder(transportType)
+                    .withAutomaticReconnect()
+                    .build();
+
+                hubConnection.onreconnecting(() => {
+                    hubConnection.baseUrl = "http://example123.com";
+                    reconnectingPromise.resolve();
+                });
+
+                await hubConnection.start();
+
+                // Induce reconnect
+                (hubConnection as any).serverTimeout();
+
+                await reconnectingPromise;
+
+                expect(hubConnection.baseUrl).toBe("http://example123.com");
+
+                await hubConnection.stop();
+
+                done();
+            } catch (err) {
+                fail(err);
+                done();
+            }
+        });
     });
 
     it("can reconnect after negotiate redirect", async (done) => {
diff --git a/src/SignalR/clients/ts/signalr/src/HttpConnection.ts b/src/SignalR/clients/ts/signalr/src/HttpConnection.ts
index dc560e9a14..ce5e6d4869 100644
--- a/src/SignalR/clients/ts/signalr/src/HttpConnection.ts
+++ b/src/SignalR/clients/ts/signalr/src/HttpConnection.ts
@@ -53,7 +53,6 @@ export class HttpConnection implements IConnection {
     // connectionStarted is tracked independently from connectionState, so we can check if the
     // connection ever did successfully transition from connecting to connected before disconnecting.
     private connectionStarted: boolean;
-    private readonly baseUrl: string;
     private readonly httpClient: HttpClient;
     private readonly logger: ILogger;
     private readonly options: IHttpConnectionOptions;
@@ -66,6 +65,7 @@ export class HttpConnection implements IConnection {
     private sendQueue?: TransportSendQueue;
 
     public readonly features: any = {};
+    public baseUrl: string;
     public connectionId?: string;
     public onreceive: ((data: string | ArrayBuffer) => void) | null;
     public onclose: ((e?: Error) => void) | null;
diff --git a/src/SignalR/clients/ts/signalr/src/HubConnection.ts b/src/SignalR/clients/ts/signalr/src/HubConnection.ts
index 1d5bafd23c..517bce66dd 100644
--- a/src/SignalR/clients/ts/signalr/src/HubConnection.ts
+++ b/src/SignalR/clients/ts/signalr/src/HubConnection.ts
@@ -127,6 +127,28 @@ export class HubConnection {
         return this.connection ? (this.connection.connectionId || null) : null;
     }
 
+    /** Indicates the url of the {@link HubConnection} to the server. */
+    get baseUrl(): string {
+        return this.connection.baseUrl || "";
+    }
+
+    /**
+     * Sets a new url for the HubConnection. Note that the url can only be changed when the connection is in either the Disconnected or
+     * Reconnecting states.
+     * @param {string} url The url to connect to.
+     */
+    set baseUrl(url: string) {
+        if (this.connectionState !== HubConnectionState.Disconnected && this.connectionState !== HubConnectionState.Reconnecting) {
+            throw new Error("The HubConnection must be in the Disconnected or Reconnecting state to change the url.");
+        }
+
+        if (!url) {
+            throw new Error("The HubConnection url must be a valid url.");
+        }
+
+        this.connection.baseUrl = url;
+    }
+
     /** Starts the connection.
      *
      * @returns {Promise<void>} A Promise that resolves when the connection has been successfully established, or rejects with an error.
diff --git a/src/SignalR/clients/ts/signalr/src/IConnection.ts b/src/SignalR/clients/ts/signalr/src/IConnection.ts
index beccd3cbcb..f9c74dd0e7 100644
--- a/src/SignalR/clients/ts/signalr/src/IConnection.ts
+++ b/src/SignalR/clients/ts/signalr/src/IConnection.ts
@@ -8,6 +8,8 @@ export interface IConnection {
     readonly features: any;
     readonly connectionId?: string;
 
+    baseUrl: string;
+
     start(transferFormat: TransferFormat): Promise<void>;
     send(data: string | ArrayBuffer): Promise<void>;
     stop(error?: Error): Promise<void>;
diff --git a/src/SignalR/clients/ts/signalr/tests/HubConnection.test.ts b/src/SignalR/clients/ts/signalr/tests/HubConnection.test.ts
index ed05cb3232..72c417d343 100644
--- a/src/SignalR/clients/ts/signalr/tests/HubConnection.test.ts
+++ b/src/SignalR/clients/ts/signalr/tests/HubConnection.test.ts
@@ -41,6 +41,58 @@ describe("HubConnection", () => {
             });
         });
 
+        it("can change url", async () => {
+            await VerifyLogger.run(async (logger) => {
+                const connection = new TestConnection();
+                const hubConnection = createHubConnection(connection, logger);
+                try {
+                    await hubConnection.start();
+                    await hubConnection.stop();
+                    hubConnection.baseUrl = "http://newurl.com";
+                    expect(hubConnection.baseUrl).toBe("http://newurl.com");
+                } finally {
+                    await hubConnection.stop();
+                }
+            });
+        });
+
+        it("can change url in onclose", async () => {
+            await VerifyLogger.run(async (logger) => {
+                const connection = new TestConnection();
+                const hubConnection = createHubConnection(connection, logger);
+                try {
+                    await hubConnection.start();
+
+                    expect(hubConnection.baseUrl).toBe("http://example.com");
+                    hubConnection.onclose(() => {
+                        hubConnection.baseUrl = "http://newurl.com";
+                    });
+
+                    await hubConnection.stop();
+                    expect(hubConnection.baseUrl).toBe("http://newurl.com");
+                } finally {
+                    await hubConnection.stop();
+                }
+            });
+        });
+
+        it("changing url while active throws", async () => {
+            await VerifyLogger.run(async (logger) => {
+                const connection = new TestConnection();
+                const hubConnection = createHubConnection(connection, logger);
+                try {
+                    await hubConnection.start();
+
+                    expect(() => {
+                        hubConnection.baseUrl = "http://newurl.com";
+                    }).toThrow("The HubConnection must be in the Disconnected or Reconnecting state to change the url.");
+
+                } finally {
+                    await hubConnection.stop();
+                }
+            });
+        });
+
         it("state connected", async () => {
             await VerifyLogger.run(async (logger) => {
                 const connection = new TestConnection();
@@ -1076,7 +1128,7 @@ describe("HubConnection", () => {
                     hubConnection.stream("testMethod").subscribe(NullSubscriber.instance);
 
                     // Send completion to trigger observer.complete()
-                    // Expectation is connection.receive will not to throw
+                    // Expectation is connection.receive will not throw
                     connection.receive({ type: MessageType.Completion, invocationId: connection.lastInvocationId });
                 } finally {
                     await hubConnection.stop();
diff --git a/src/SignalR/clients/ts/signalr/tests/TestConnection.ts b/src/SignalR/clients/ts/signalr/tests/TestConnection.ts
index 60e45cc641..0ad7d89a95 100644
--- a/src/SignalR/clients/ts/signalr/tests/TestConnection.ts
+++ b/src/SignalR/clients/ts/signalr/tests/TestConnection.ts
@@ -5,6 +5,7 @@ import { IConnection } from "../src/IConnection";
 import { TextMessageFormat } from "../src/TextMessageFormat";
 
 export class TestConnection implements IConnection {
+    public baseUrl: string;
     public readonly features: any = {};
     public connectionId?: string;
 
@@ -22,6 +23,7 @@ export class TestConnection implements IConnection {
         this.sentData = [];
         this.lastInvocationId = null;
         this.autoHandshake = autoHandshake;
+        this.baseUrl = "http://example.com";
     }
 
     public start(): Promise<void> {