From ef7d232a9fd6a091e3230eb20c16998a7df7883f Mon Sep 17 00:00:00 2001
From: GoEdgeLab <goedgecloud@gmail.com>
Date: Mon, 31 Jul 2023 16:05:08 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E4=BB=A3=E7=A0=81?=
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---
 internal/nodes/http_writer.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/internal/nodes/http_writer.go b/internal/nodes/http_writer.go
index c9c3e05..2fa54aa 100644
--- a/internal/nodes/http_writer.go
+++ b/internal/nodes/http_writer.go
@@ -1055,7 +1055,9 @@ func (this *HTTPWriter) finishWebP() {
 				if webpCacheWriter != nil {
 					var teeWriter = writers.NewTeeWriterCloser(this.writer, webpCacheWriter)
 					teeWriter.OnFail(func(err error) {
-						_ = webpCacheWriter.Discard()
+						if webpCacheWriter != nil {
+							_ = webpCacheWriter.Discard()
+						}
 						webpCacheWriter = nil
 					})
 					this.writer = teeWriter