From ad8ecf96a1d9840167a87faf080cc2f48531a307 Mon Sep 17 00:00:00 2001
From: Chris Ross <Tratcher@Outlook.com>
Date: Wed, 15 Jan 2020 11:07:50 -0800
Subject: [PATCH] React to runtime/594 Encoder.Convert change (#17747)

---
 .../src/Extensions/HttpResponseWritingExtensions.cs            | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Http/Http.Abstractions/src/Extensions/HttpResponseWritingExtensions.cs b/src/Http/Http.Abstractions/src/Extensions/HttpResponseWritingExtensions.cs
index 7d4532c4c8..c94118a82e 100644
--- a/src/Http/Http.Abstractions/src/Extensions/HttpResponseWritingExtensions.cs
+++ b/src/Http/Http.Abstractions/src/Extensions/HttpResponseWritingExtensions.cs
@@ -133,7 +133,8 @@ namespace Microsoft.AspNetCore.Http
             // Therefore, we check encodedLength - totalBytesUsed too.
             while (!completed || encodedLength - totalBytesUsed != 0)
             {
-                encoder.Convert(source, destination, flush: source.Length == 0, out var charsUsed, out var bytesUsed, out completed);
+                // 'text' is a complete string, the converter should always flush its buffer.
+                encoder.Convert(source, destination, flush: true, out var charsUsed, out var bytesUsed, out completed);
                 totalBytesUsed += bytesUsed;
 
                 writer.Advance(bytesUsed);