From ebd87a8f20e538e4f9c4387f5f66884d1dc6ac06 Mon Sep 17 00:00:00 2001
From: Javier Calvarro Nelson <jacalvar@microsoft.com>
Date: Wed, 30 Oct 2019 10:04:30 +0100
Subject: [PATCH] [Blazor][Fixes #15413] Notify client of errors during
 initialization (#16636)

---
 src/Components/Server/src/Circuits/CircuitHost.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Components/Server/src/Circuits/CircuitHost.cs b/src/Components/Server/src/Circuits/CircuitHost.cs
index 68c4a01d2d..47a04da3a9 100644
--- a/src/Components/Server/src/Circuits/CircuitHost.cs
+++ b/src/Components/Server/src/Circuits/CircuitHost.cs
@@ -122,6 +122,7 @@ namespace Microsoft.AspNetCore.Components.Server.Circuits
                     // Report errors asynchronously. InitializeAsync is designed not to throw.
                     Log.InitializationFailed(_logger, ex);
                     UnhandledException?.Invoke(this, new UnhandledExceptionEventArgs(ex, isTerminating: false));
+                    await TryNotifyClientErrorAsync(Client, GetClientErrorMessage(ex), ex);
                 }
             });
         }