Unity3d WWW timeout

    private IEnumerator FetchUrl(string url)
    {
        print("Start fetching");

        WWW www = new WWW(url);

        for (int i = 0; i < TimeoutInSeconds; i++)
        {
            yield return new WaitForSeconds(1);
            if (www.isDone) break;
        }

        if (!www.isDone)
        {
            print("Timeout expired");
            www.Dispose();
            yield break;
        }

        if (!string.IsNullOrEmpty(www.error))
        {
            Debug.LogError(www.error);
            yield break;
        }

        print("Url fetched: " + www.text);
    }