HTML audio can't set currentTime

Question

I am using Chrome. In my dev tools console, I tried the following:

Everything works as expected except last line. Why can\'t I set currentTime

Answer 1

I had the same problem, and the reason was missing headers on the mp3 file, like:

Content-Length, Content-Range, Content-Type

Answer 2

Why cant I set currentTime on it?

Could not reproduce currentTime being set to 0 after setting to 10. Is 18.mp3 duration less than 10?

var request = new XMLHttpRequest();
request.open("GET", "/assets/audio/18.mp3", true);
request.responseType = "blob";    
request.onload = function() {
  if (this.status == 200) {
    var audio = new Audio(URL.createObjectURL(this.response));
    audio.load();
    audio.currentTime = 10;
    audio.play();
  }
}
request.send();

jsfiddle http://jsfiddle.net/Lg5L4qso/3/