bugfix: applied the gzip_flush_bug.patch to the nginx core. see also http://mailman.nginx.org/pipermail/nginx-devel/2013-October/004429.html

patches/nginx-1.4.3-gzip_flush_bug.patch

@@ -0,0 +1,19 @@
+--- nginx-1.4.3/src/http/modules/ngx_http_gzip_filter_module.c	2013-10-08 05:07:14.000000000 -0700
++++ nginx-1.4.3-patched/src/http/modules/ngx_http_gzip_filter_module.c	2013-10-25 17:00:00.712697908 -0700
+@@ -433,7 +433,15 @@ ngx_http_gzip_body_filter(ngx_http_reque
+         if (ctx->out == NULL) {
+             ngx_http_gzip_filter_free_copy_buf(r, ctx);
+ 
+-            return ctx->busy ? NGX_AGAIN : NGX_OK;
++            if (ctx->busy) {
++                if (in == NULL) {
++                    return ngx_http_next_body_filter(r, NULL);
++                }
++
++                return NGX_AGAIN;
++            }
++
++            return NGX_OK;
+         }
+ 
+         if (!ctx->gzheader) {

util/mirror-tarballs

@@ -187,6 +187,10 @@ if [ "$answer" = "N" ]; then
     echo
 fi
 
+echo "$info_txt applying the gzip_flush_bug patch for lua $ver"
+patch -p1 < $root/patches/nginx-$ver-gzip_flush_bug.patch || exit 1
+echo
+
 rm -f *.patch || exit 1
 
 cd .. || exit 1