fix forwarded proto

build/nginx/configuration/nginx-default.conf

@@ -17,7 +17,7 @@ server {
         proxy_set_header Host $host;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Proto "https";
         proxy_set_header X-Forwarded-Host $host;
         proxy_set_header X-Forwarded-Port 8080;
         proxy_buffer_size    256k;