# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1321276870 0
# Node ID a0f18c78db3b5898dab59fd74f208242f7b00ff2
# Parent  bb909c0c8629f3d46e1aa6b735da05b3cb52361c
Fixed Upgrade header clearing with proxy_cache.

This was missed in proxy HTTP/1.1 support commit (r4127).

diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -543,6 +543,7 @@ static ngx_keyval_t  ngx_http_proxy_cach
     { ngx_string("Connection"), ngx_string("close") },
     { ngx_string("Keep-Alive"), ngx_string("") },
     { ngx_string("Expect"), ngx_string("") },
+    { ngx_string("Upgrade"), ngx_string("") },
     { ngx_string("If-Modified-Since"), ngx_string("") },
     { ngx_string("If-Unmodified-Since"), ngx_string("") },
     { ngx_string("If-None-Match"), ngx_string("") },