              pending.end_column = e.length > 1 ? parseInt(e[1]) : 0;
            }
        };

        let set_location = (file, start_line, start_column, end_line, end_column) => {
            current.file = file;
            current.start_line = start_line;
            current.start_column = start_column;
            current.end_line = end_line;
            current.end_column = end_column;

            let url = new URL(location.href);
            let query_string = url.search;
            // Don't use U