# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1582204769 -10800
# Node ID aca005d232ff62a472061f75db9de16ab5316fac
# Parent  1055e43e4fab57a61a896b7c170b7b03fdac165c
Disabled multiple Transfer-Encoding headers.

We anyway do not support more than one transfer encoding, so accepting
requests with multiple Transfer-Encoding headers doesn't make sense.
Further, we do not handle multiple headers, and ignore anything but
the first header.

Reported by Filippo Valsorda.

diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -131,7 +131,7 @@ ngx_http_header_t  ngx_http_headers_in[]
 
     { ngx_string("Transfer-Encoding"),
                  offsetof(ngx_http_headers_in_t, transfer_encoding),
-                 ngx_http_process_header_line },
+                 ngx_http_process_unique_header_line },
 
     { ngx_string("TE"),
                  offsetof(ngx_http_headers_in_t, te),