NGX_HTTP_IMAGE_OFF  207 http/modules/ngx_http_image_filter_module.c     if (conf->filter == NGX_HTTP_IMAGE_OFF) {
NGX_HTTP_IMAGE_OFF 1162 http/modules/ngx_http_image_filter_module.c             conf->filter = NGX_HTTP_IMAGE_OFF;
NGX_HTTP_IMAGE_OFF 1211 http/modules/ngx_http_image_filter_module.c             imcf->filter = NGX_HTTP_IMAGE_OFF;