From 9dc8a6336edddca0f3f90392bbc398f4ceaeaf13 Mon Sep 17 00:00:00 2001
From: yp05327 <576951401@qq.com>
Date: Fri, 8 Mar 2024 17:44:50 +0900
Subject: [PATCH] Fix incorrect rendering csv file when file size is larger
 than UI.CSV.MaxFileSize (#29653)

Fix #29506
---
 modules/markup/csv/csv.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/modules/markup/csv/csv.go b/modules/markup/csv/csv.go
index 7af34a6cbc..12458e954a 100644
--- a/modules/markup/csv/csv.go
+++ b/modules/markup/csv/csv.go
@@ -93,8 +93,10 @@ func (Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.Wri
 		if _, err := tmpBlock.WriteString(html.EscapeString(string(rawBytes))); err != nil {
 			return err
 		}
-		_, err = tmpBlock.WriteString("</pre>")
-		return err
+		if _, err := tmpBlock.WriteString("</pre>"); err != nil {
+			return err
+		}
+		return tmpBlock.Flush()
 	}
 
 	rd, err := csv.CreateReaderAndDetermineDelimiter(ctx, bytes.NewReader(rawBytes))