NGX_HTTP_SSI_BUFFERED  961 http/modules/ngx_http_ssi_filter_module.c         r->buffered |= NGX_HTTP_SSI_BUFFERED;
NGX_HTTP_SSI_BUFFERED  964 http/modules/ngx_http_ssi_filter_module.c         r->buffered &= ~NGX_HTTP_SSI_BUFFERED;