Update nginx reverse-proxy docs (#9512)

Turns out nginx overwrites the Host header by default.

2 files changed, 3 insertions, 0 deletions

diff --git a/changelog.d/9512.feature b/changelog.d/9512.feature
new file mode 100644

index 0000000000..06cfd5d199
--- /dev/null
+++ b/changelog.d/9512.feature
@@ -0,0 +1 @@
+Add support for `X-Forwarded-Proto` header when using a reverse proxy.
diff --git a/docs/reverse_proxy.md b/docs/reverse_proxy.md

index bb7caa8bb9..81e5a68a36 100644
--- a/docs/reverse_proxy.md
+++ b/docs/reverse_proxy.md
@@ -53,6 +53,8 @@ server {
         proxy_pass http://localhost:8008;
         proxy_set_header X-Forwarded-For $remote_addr;
         proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Host $host;
+
         # Nginx by default only allows file uploads up to 1M in size
         # Increase client_max_body_size to match max_upload_size defined in homeserver.yaml
         client_max_body_size 50M;