# HG changeset patch
# User Yaroslav Zhuravlev <yar@nginx.com>
# Date 1448027801 -10800
# Node ID 887ce78207ac9b2ee7dcca717b3ccf21639b2422
# Parent  15300c606f70ebf76854516b87750d1733408891
Added note about ssl_prefer_server_ciphers in HTTP/2.

diff --git a/xml/en/docs/http/ngx_http_v2_module.xml b/xml/en/docs/http/ngx_http_v2_module.xml
--- a/xml/en/docs/http/ngx_http_v2_module.xml
+++ b/xml/en/docs/http/ngx_http_v2_module.xml
@@ -9,7 +9,7 @@
 <module name="Module ngx_http_v2_module"
         link="/en/docs/http/ngx_http_v2_module.html"
         lang="en"
-        rev="2">
+        rev="3">
 
 <section id="summary">
 
@@ -76,6 +76,16 @@ Using the “Next Protocol Negotiation” (NPN) TLS extension for this purpose
 (available since OpenSSL version 1.0.1) is not guaranteed.
 </para>
 
+<para>
+Also note that if the
+<link doc="ngx_http_ssl_module.xml" id="ssl_prefer_server_ciphers"/> directive
+is set to the value <value>on</value>,
+the <link doc="ngx_http_ssl_module.xml" id="ssl_ciphers">ciphers</link>
+should be configured to comply with
+<link url="https://tools.ietf.org/html/rfc7540#appendix-A">RFC 7540, Appendix A</link>
+black list and supported by clients.
+</para>
+
 </section>