Missing header in output when input has only header

Hi there,

The following code

const inputFilePath = 'test_in.csv';
const outputCsv = fs.createWriteStream('test_out.csv');

fs.createReadStream(inputFilePath)
    .pipe(csv.parse({ columns: true }))
    .pipe(csv.stringify({ header: true, quoted: true }))
    .pipe(outputCsv);

Gives the output I expect (output same as input, apart from the quotes) when the input has lines beyond the header, but gives an empty file instead when test_in.csv only contains a header. Is that expected? How can I force it to always dump the header to the output?

Many thanks in advance.

Start with the provided test_in.csv/test_out.csv stream pipeline, especially csv.parse({ columns: true }) and csv.stringify({ header: true, quoted: true }), using an input containing only the header. Check the existing parser and stringifier tests for header-only behavior; done means the expected header output is documented or covered by a confirmed fix.