From 13cf5bd583251a049b051dffef36c4b30e780ef4 Mon Sep 17 00:00:00 2001
From: Steve Sanderson <SteveSandersonMS@users.noreply.github.com>
Date: Tue, 21 Aug 2018 15:34:20 +0100
Subject: [PATCH] Add Blazor.onServerConnectionClose to fix #1339

This API will be removed once we implement proper connection management (reconnects, etc.)
---
 src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Boot.Server.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Boot.Server.ts b/src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Boot.Server.ts
index 0efbe4e161..8880476f9d 100644
--- a/src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Boot.Server.ts
+++ b/src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Boot.Server.ts
@@ -47,6 +47,10 @@ function boot() {
       );
     })
     .catch(unhandledError);
+
+  // Temporary undocumented API to help with https://github.com/aspnet/Blazor/issues/1339
+  // This will be replaced once we implement proper connection management (reconnects, etc.)
+  window['Blazor'].onServerConnectionClose = connection.onclose.bind(connection);
 }
 
 function unhandledError(err) {