nginx 0.5.13 *) Feature: the COPY and MOVE methods. *) Bugfix: the ngx_http_realip_module set garbage for requests passed via keep-alive connection. *) Bugfix: nginx did not work on big-endian 64-bit Linux. Thanks to Andrei Nigmatulin. *) Bugfix: now when IMAP/POP3 proxy receives too long command it closes the connection right away, but not after timeout. *) Bugfix: if the "epoll" method was used and a client closed a connection prematurely, then nginx closed the connection after a send timeout only. *) Bugfix: nginx could not be built on platforms different from i386, amd64, sparc and ppc; bug appeared in 0.5.8.

--- a/src/http/modules/ngx_http_addition_filter_module.c
+++ b/src/http/modules/ngx_http_addition_filter_module.c
@@ -100,8 +100,8 @@ ngx_http_addition_header_filter(ngx_http
         return ngx_http_next_header_filter(r);
     }
 
-    if (ngx_strncasecmp(r->headers_out.content_type.data, "text/html",
-                        sizeof("text/html") - 1)
+    if (ngx_strncasecmp(r->headers_out.content_type.data,
+                        (u_char *) "text/html", sizeof("text/html") - 1)
         != 0)
     {
         return ngx_http_next_header_filter(r);