From 31ccab13a68622eca6624a358d4974239d040bc6 Mon Sep 17 00:00:00 2001
From: Jacked <59811493+jackedproxy@users.noreply.github.com>
Date: Wed, 27 Aug 2025 10:56:14 +0100
Subject: [PATCH] Update reverse-proxy.md

Documentation is missing recently introduced /_synapse/mas endpoint. The absence of this endpoint will result in the inability to sign into new sessions.
---
 docs/setup/reverse-proxy.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/docs/setup/reverse-proxy.md b/docs/setup/reverse-proxy.md
index 0a24e0a58..b641e328c 100644
--- a/docs/setup/reverse-proxy.md
+++ b/docs/setup/reverse-proxy.md
@@ -106,6 +106,16 @@ server {
 }
 ```
 
+## Synapse MAS endpoint 
+Include **/_synapse/mas** under the location paths forwarded to Synapse.
+
+```nginx
+server {
+  # ---- SNIP ----
+location ~ ^(/_matrix|/_synapse/client|/_synapse/mas) {
+  # ---- SNIP ----
+```
+
 ## Preserve the client IP
 
 For rate-limiting and logging purposes, MAS needs to know the client IP address, which can be lost when using a reverse proxy.