From 0a8d0eaa9be35bfa899135118f1917dbd57dbda1 Mon Sep 17 00:00:00 2001
From: Oliver Salzburg <oliver.salzburg@gmail.com>
Date: Tue, 18 Oct 2016 18:48:44 +0200
Subject: [PATCH] doc: mention case-insensitive env on windows

On Windows OS, environment variables are case-insensitive and are
treated likewise in NodeJS. This can be confusing and can lead
to hard-to-debug problems when moving code from one environment
to another.

Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/9166
Fixes: https://github.com/nodejs/node/issues/9157
---
 doc/api/process.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/api/process.md b/doc/api/process.md
index 376a40d713..7a109dd6ab 100644
--- a/doc/api/process.md
+++ b/doc/api/process.md
@@ -708,6 +708,16 @@ console.log(process.env.TEST);
 // => undefined
 ```
 
+On Windows operating systems, environment variables are case-insensitive.
+
+Example:
+
+```js
+process.env.TEST = 1;
+console.log(process.env.test);
+// => 1
+```
+
 ## process.emitWarning(warning[, name][, ctor])
 <!-- YAML
 added: v6.0.0