From afe32081eb33773a4e3230dd89756204cb48a089 Mon Sep 17 00:00:00 2001
From: wj25czxj47bu6q <96372288+wj25czxj47bu6q@users.noreply.github.com>
Date: Sat, 7 Oct 2023 11:50:42 +0000
Subject: [PATCH] Add proxy_hide_header to avoid sending duplicate headers

Signed-off-by: wj25czxj47bu6q <96372288+wj25czxj47bu6q@users.noreply.github.com>
---
 etc/nginx/headers.conf | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/etc/nginx/headers.conf b/etc/nginx/headers.conf
index e4ec5ea..ba3812c 100644
--- a/etc/nginx/headers.conf
+++ b/etc/nginx/headers.conf
@@ -1,8 +1,23 @@
-add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
+proxy_hide_header Strict-Transport-Security;
+add_header        Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
+
+proxy_hide_header Permissions-Policy;
 add_header Permissions-Policy "accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), clipboard-read=(), display-capture=(), document-domain=(), encrypted-media=(), fullscreen=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), magnetometer=(), midi=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), usb=(), sync-xhr=(), xr-spatial-tracking=()";
-add_header Referrer-Policy "same-origin" always;
-add_header X-Content-Type-Options "nosniff" always;
-add_header X-Frame-Options "SAMEORIGIN" always;
-add_header X-XSS-Protection "0" always;
-add_header Cross-Origin-Resource-Policy cross-origin;
-add_header Cross-Origin-Opener-Policy same-origin;
+
+proxy_hide_header Referrer-Policy;
+add_header        Referrer-Policy "same-origin" always;
+
+proxy_hide_header X-Content-Type-Options;
+add_header        X-Content-Type-Options "nosniff" always;
+
+proxy_hide_header X-Frame-Options;
+add_header        X-Frame-Options "SAMEORIGIN" always;
+
+proxy_hide_header X-XSS-Protection;
+add_header        X-XSS-Protection "0" always;
+
+proxy_hide_header Cross-Origin-Resource-Policy;
+add_header        Cross-Origin-Resource-Policy cross-origin;
+
+proxy_hide_header Cross-Origin-Opener-Policy;
+add_header        Cross-Origin-Opener-Policy same-origin;