Example URL:
http://buildoneforme.com/chrome-report/

Steps to reproduce the problem:
1. Go to http://buildoneforme.com/chrome-report/
2. Click on top link "Locally served MP3 file"
3. As soon as page loads, click on the Play button
4. It takes a long time for audio to start playing. On my Samsung Galaxy View, it takes at least nearly 11 seconds. NOTE: Playback starts as soon as the progress event is received, and the page reports how long that takes.
5. Go back to home page, and this time click on "Served using XSendFile"
6. This time it usually takes more than 15 seconds before playback starts

NOTE: The XSendFile option serves the file via Django but it actually uses the Apache module XSendFile. For some reason this is much slower.

What is the expected behavior?
Playback starts much more quickly on the desktop version of Chrome. Around 1 second or less for both options.

What went wrong?
Playback takes a long time to stream. 10-15 seconds

Did this work before? N/A 

Is it a problem with Flash or HTML5? HTML5

Does this work in other browsers? Yes 

Chrome version: 49.0.2623.91  Channel: stable
OS Version: 5.1.1
Flash Version: