From 7774c2b803bcab4cec249e7e82654bec6f0a1f3a Mon Sep 17 00:00:00 2001
From: Alexander Yastrebov <alexander.yastrebov@zalando.de>
Date: Thu, 12 Dec 2024 19:45:03 +0100
Subject: [PATCH] docs: add a note about -proxy-preserve-host flag

Add a note about the flag to `preserveHost` filter docs.

Signed-off-by: Alexander Yastrebov <alexander.yastrebov@zalando.de>
---
 docs/reference/filters.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/reference/filters.md b/docs/reference/filters.md
index 015f35d185..3f2e2d5548 100644
--- a/docs/reference/filters.md
+++ b/docs/reference/filters.md
@@ -115,6 +115,8 @@ Example:
 route1: * -> preserveHost("true") -> "http://backend.example.org";
 ```
 
+Default `proxyPreserveHost` behavior can be configured by `-proxy-preserve-host` flag which is `false` by default.
+
 ### modRequestHeader
 
 Replace all matched regex expressions in the given header.