From f6b2947ec5dfb33dc5af571d2f63eb202106468a Mon Sep 17 00:00:00 2001
From: Anthony Donlon <idonlon@hotmail.com>
Date: Thu, 20 Nov 2025 00:42:11 +0800
Subject: [PATCH] examples/flask_server: fix extracting ray_id

---
 examples/flask_server.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/examples/flask_server.py b/examples/flask_server.py
index d231a8b..c826533 100755
--- a/examples/flask_server.py
+++ b/examples/flask_server.py
@@ -59,6 +59,8 @@ def index(name: str):
 
     # Get real Ray ID from Cloudflare header
     ray_id = request.headers.get('Cf-Ray')
+    if ray_id:
+        ray_id = ray_id[:16]
 
     # Get real client ip from Cloudflare header or request.remote_addr
     client_ip = request.headers.get('X-Forwarded-For')