Node - Can't seek audio stream

Question

I have created a simple server that uses the fs module to stream an mp3 file to a browser which plays it in an html5 audio element. As it is, the audio streams perfectly fin

Answer 1

Adjusted code from one of the unaccepted answer in this question:

var express = require('express'),
    fs = require('fs'),
    app = express()

app.get('/', function (req, res) {
    var filePath = 'music.mp3';
    var stat = fs.statSync(filePath);
    var total = stat.size;
    if (req.headers.range) {
        var range = req.headers.range;
        var parts = range.replace(/bytes=/, "").split("-");
        var partialstart = parts[0];
        var partialend = parts[1];

        var start = parseInt(partialstart, 10);
        var end = partialend ? parseInt(partialend, 10) : total-1;
        var chunksize = (end-start)+1;
        var readStream = fs.createReadStream(filePath, {start: start, end: end});
        res.writeHead(206, {
            'Content-Range': 'bytes ' + start + '-' + end + '/' + total,
            'Accept-Ranges': 'bytes', 'Content-Length': chunksize,
            'Content-Type': 'video/mp4'
        });
        readStream.pipe(res);
     } else {
        res.writeHead(200, { 'Content-Length': total, 'Content-Type': 'audio/mpeg' });
        fs.createReadStream(filePath).pipe(res);
     }
});