From 70649ff1e1c56fae8df9a1ac4f217a5fb39574f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Filip=20Havl=C3=AD=C4=8Dek?= <filip.havlicek@livesport.eu>
Date: Thu, 14 Apr 2022 05:06:48 +0200
Subject: [PATCH] Fallback to ngx.var.scheme for redirectScheme with
 use-forward-headers when X-Forwarded-Proto is empty (#8468)

---
 rootfs/etc/nginx/template/nginx.tmpl | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/rootfs/etc/nginx/template/nginx.tmpl b/rootfs/etc/nginx/template/nginx.tmpl
index eaaf60c65..b845988ad 100755
--- a/rootfs/etc/nginx/template/nginx.tmpl
+++ b/rootfs/etc/nginx/template/nginx.tmpl
@@ -591,7 +591,12 @@ http {
             end
 
             {{ if $cfg.UseForwardedHeaders }}
-            local redirectScheme = ngx.var.http_x_forwarded_proto
+            local redirectScheme
+            if not ngx.var.http_x_forwarded_proto then
+                redirectScheme = ngx.var.scheme
+            else
+                redirectScheme = ngx.var.http_x_forwarded_proto
+            end
             {{ else }}
             local redirectScheme = ngx.var.scheme
             {{ end }}