From ade1db08354d2cff899b6bc313b7541cece3f682 Mon Sep 17 00:00:00 2001
From: Andrew Murray <3112309+radarhere@users.noreply.github.com>
Date: Wed, 7 May 2025 14:59:34 +1000
Subject: [PATCH] Replace slice and comparison with startswith

---
 src/PIL/JpegXlImagePlugin.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/PIL/JpegXlImagePlugin.py b/src/PIL/JpegXlImagePlugin.py
index 32ef33f28..425392461 100644
--- a/src/PIL/JpegXlImagePlugin.py
+++ b/src/PIL/JpegXlImagePlugin.py
@@ -25,8 +25,8 @@ except ImportError:
 
 def _accept(prefix: bytes) -> bool:
     is_jxl = (
-        prefix[:2] == b"\xff\x0a"
-        or prefix[:12] == b"\x00\x00\x00\x0c\x4a\x58\x4c\x20\x0d\x0a\x87\x0a"
+        prefix.startswith(b"\xff\x0a")
+        or prefix.startswith(b"\x00\x00\x00\x0c\x4a\x58\x4c\x20\x0d\x0a\x87\x0a")
     )
     if is_jxl and not SUPPORTED:
         msg = "image file could not be identified because JXL support not installed"