NGX_EISDIR        227 http/modules/ngx_http_dav_module.c             ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_EISDIR,
NGX_EISDIR        336 http/modules/ngx_http_dav_module.c             ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_EISDIR,