# HG changeset patch
# User Ruslan Ermilov <ru@nginx.com>
# Date 1448394420 -10800
# Node ID 2d60caa1c1dded4ef33b6ba5abdab4110b629280
# Parent  887ce78207ac9b2ee7dcca717b3ccf21639b2422
Documented headers that are stripped when caching is enabled.

diff -r 887ce78207ac -r 2d60caa1c1dd xml/en/docs/http/ngx_http_proxy_module.xml
--- a/xml/en/docs/http/ngx_http_proxy_module.xml	Fri Nov 20 16:56:41 2015 +0300
+++ b/xml/en/docs/http/ngx_http_proxy_module.xml	Tue Nov 24 22:47:00 2015 +0300
@@ -10,7 +10,7 @@
 <module name="Module ngx_http_proxy_module"
         link="/en/docs/http/ngx_http_proxy_module.html"
         lang="en"
-        rev="43">
+        rev="44">
 
 <section id="summary">
 
@@ -1660,6 +1660,15 @@
 proxy_set_header Host       $proxy_host;
 proxy_set_header Connection close;
 </example>
+If caching is enabled, the header fields
+<header>If-Modified-Since</header>,
+<header>If-Unmodified-Since</header>,
+<header>If-None-Match</header>,
+<header>If-Match</header>,
+<header>Range</header>,
+and
+<header>If-Range</header>
+from the original request are not passed to the proxied server.
 </para>
 
 <para>
diff -r 887ce78207ac -r 2d60caa1c1dd xml/ru/docs/http/ngx_http_proxy_module.xml
--- a/xml/ru/docs/http/ngx_http_proxy_module.xml	Fri Nov 20 16:56:41 2015 +0300
+++ b/xml/ru/docs/http/ngx_http_proxy_module.xml	Tue Nov 24 22:47:00 2015 +0300
@@ -10,7 +10,7 @@
 <module name="Модуль ngx_http_proxy_module"
         link="/ru/docs/http/ngx_http_proxy_module.html"
         lang="ru"
-        rev="43">
+        rev="44">
 
 <section id="summary">
 
@@ -1660,6 +1660,15 @@
 proxy_set_header Host       $proxy_host;
 proxy_set_header Connection close;
 </example>
+Если включено кэширование, поля заголовка
+<header>If-Modified-Since</header>,
+<header>If-Unmodified-Since</header>,
+<header>If-None-Match</header>,
+<header>If-Match</header>,
+<header>Range</header>
+и
+<header>If-Range</header>
+исходного запроса не передаются на проксируемый сервер.
 </para>
 
 <para>