node.js download file has cjk name file download throw error if you have file’s name composed CJK characters encodeURIComponent res.setHeader('Content-disposition', 'attachment; filename=' + encodeURIComponent(filename)); res.setHeader('Content-type', mimetype); var filestream = fs.createReadStream(realPath); filestream.pipe(res); 1234 res.setHeader('Content-disposition', 'attachment; filename=' + encodeURIComponent(filename));res.setHeader('Content-type', mimetype);var filestream = fs.createReadStream(realPath);filestream.pipe(res);