nginx 0.1.30 *) Bugfix: the worker process may got caught in an endless loop if the SSI was used. *) Bugfix: the response encrypted by SSL may not transferred complete. *) Bugfix: if the length of the response part received at once from proxied or FastCGI server was equal to 500, then nginx returns the 500 response code; in proxy mode the bug appeared in 0.1.29 only. *) Bugfix: nginx did not consider the directives with 8 or 9 parameters as invalid. *) Feature: the "return" directive can return the 204 response code. *) Feature: the "ignore_invalid_headers" directive.

--- a/src/http/ngx_http_write_filter_module.c
+++ b/src/http/ngx_http_write_filter_module.c
@@ -168,6 +168,7 @@ ngx_http_write_filter(ngx_http_request_t
         return NGX_OK;
     }
 
+#if 0
     /*
      * avoid the output if there are no incoming bufs but there are
      * the postponed requests or data
@@ -176,6 +177,7 @@ ngx_http_write_filter(ngx_http_request_t
     if (in == NULL && r->postponed) {
         return NGX_OK;
     }
+#endif
 
     if (c->write->delayed) {
         return NGX_AGAIN;