nginx 0.5.16 *) Bugfix: the C-class network was not used as hash key in the "ip_hash" directive. Thanks to Pavel Yarkovoy. *) Bugfix: a segmentation fault might occur in worker process if a charset was set in the "Content-Type" header line and the line has trailing ";"; bug appeared in 0.3.50. *) Bugfix: the "[alert] zero size buf" error when FastCGI server was used and an request body written in a temporary file was multiple of 32K. *) Bugfix: nginx could not be built on Solaris without the --with-debug option; bug appeared in 0.5.15.

--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -2326,6 +2326,8 @@ ngx_http_upstream_copy_content_type(ngx_
 
         r->headers_out.charset.len = h->value.data + h->value.len - p;
         r->headers_out.charset.data = p;
+
+        return NGX_OK;
     }
 
     return NGX_OK;