Download progress not updating?

Im trying to do a progress status thingy on the download from www stuff. But for some reason it the progress keeps beeing 0. I have included the test code which show the problem. It does seem to download as it turns 100 when complete. But the progress does not update other than jumping from 0 to 1. missing the 0.1 0.2 0.3 … etc. It is for standalone.

Am i doing something wrong?

using UnityEngine;
using System.Collections;

public class ProgressTester : MonoBehaviour {
	
	public string url = "http://88.80.197.138/ContentApp-war/GetCE?csid=13";
	private WWW www;
	
	private IEnumerator download()
	{
		www = new WWW(url);
		yield return www;
	}
	
	void OnGUI()
	{
		if(www == null)
		{
		}
		else
		{
			if([url]www.error[/url] == null)
			{
			
			GUI.Label(new Rect(0, 0, 100, 100), new GUIContent("" + [url]www.progress[/url] * 100f + "%"));
			
			}
			else
			{
				GUI.Label(new Rect(0, 0, 100, 100), new GUIContent([url]www.error[/url]));
			}
			
		}
		
		if(GUI.Button(new Rect(0, 100, 100, 100), new GUIContent("Start")))
		{
			StartCoroutine(download());
		}
		
	}
	
}

Edit: Simplifed the code, same problem.

Filed a bug report, is beeing investigated by UT.