From 908fdb265de8d6fafb21af60ca08a7a2636fed0e Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
Date: Tue, 4 Jan 2022 15:08:36 +0000
Subject: [PATCH 1/3] update ngnix reverse-proxy example

---
 docs/reverse_proxy.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/reverse_proxy.md b/docs/reverse_proxy.md
index f3b3aea732c7..daa042620cc4 100644
--- a/docs/reverse_proxy.md
+++ b/docs/reverse_proxy.md
@@ -63,7 +63,7 @@ server {
 
     server_name matrix.example.com;
 
-    location ~* ^(\/_matrix|\/_synapse\/client) {
+    location ~ ^(\/_matrix|\/_synapse\/client) {
         # note: do not add a path (even a single /) after the port in `proxy_pass`,
         # otherwise nginx will canonicalise the URI and cause signature verification
         # errors.

From 97d53f2f3757ae6d728ee69674e42bcc5bdeaacf Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
Date: Tue, 4 Jan 2022 15:10:37 +0000
Subject: [PATCH 2/3] Create 11680.doc

---
 changelog.d/11680.doc | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/11680.doc

diff --git a/changelog.d/11680.doc b/changelog.d/11680.doc
new file mode 100644
index 000000000000..09399ad9d0e6
--- /dev/null
+++ b/changelog.d/11680.doc
@@ -0,0 +1 @@
+Correct the documentation for `nginx` to use a case-sensitive url pattern. Fixes an error introduced in v1.21.0.

From f139710053e2da1e3aa1dda4a33f61162b29d666 Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
Date: Tue, 4 Jan 2022 15:31:12 +0000
Subject: [PATCH 3/3] remove backslashes

---
 docs/reverse_proxy.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/reverse_proxy.md b/docs/reverse_proxy.md
index daa042620cc4..1a89da50fd97 100644
--- a/docs/reverse_proxy.md
+++ b/docs/reverse_proxy.md
@@ -63,7 +63,7 @@ server {
 
     server_name matrix.example.com;
 
-    location ~ ^(\/_matrix|\/_synapse\/client) {
+    location ~ ^(/_matrix|/_synapse/client) {
         # note: do not add a path (even a single /) after the port in `proxy_pass`,
         # otherwise nginx will canonicalise the URI and cause signature verification
         # errors.