From 89bee2e6dbc0091fd35fcb56f9ee872804c14e01 Mon Sep 17 00:00:00 2001
From: Alan Orth <alan.orth@gmail.com>
Date: Sat, 12 Mar 2016 19:25:57 +0200
Subject: [PATCH] roles/nginx: Add comment for gzip_vary

From: https://github.com/h5bp/server-configs-nginx/blob/master/nginx.conf

Signed-off-by: Alan Orth <alan.orth@gmail.com>
---
 roles/nginx/files/nginx.conf | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/roles/nginx/files/nginx.conf b/roles/nginx/files/nginx.conf
index 6dec63c..85f8644 100644
--- a/roles/nginx/files/nginx.conf
+++ b/roles/nginx/files/nginx.conf
@@ -29,6 +29,11 @@ http {
     keepalive_timeout  65s;
 
     gzip on;
+
+    # Tell proxies to cache both the gzipped and regular version of a resource
+    # whenever the client's Accept-Encoding capabilities header varies;
+    # Avoids the issue where a non-gzip capable client (which is extremely rare
+    # today) would display gibberish if their proxy gave them the gzipped version.
     gzip_vary on;
     gzip_comp_level 6;
     gzip_min_length 860;