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Fixed in 5.4.2



Found in


Issue ID




[Android] Application freezes on WWW.Dispose if connection is canceled



Reproduction steps:
1) Open attached project "TimeoutBug"
2) Build and run on an android device
--- According to the user also reproducible on iOS
3) Press "Start request" button
4) Either press "Cancel" button or "Cancel and Dispose" button or wait 15 seconds
--- You should notice that the application froze

Comments (4)

  1. codestage

    Aug 15, 2016 16:46

    Looking forward to the fix, really makes some pain.

  2. hakansaglam

    May 26, 2016 11:40

    As a workaround, you can dispose www in another thread.

    private void DisposeWWWInBackground (WWW www)
    new Thread( () => {
    Debug.Log("WWW dispose started in background thread.");
    Debug.Log("WWW dispose finished.");

  3. Seans

    Apr 08, 2016 09:40

    Any workaround for this now?

  4. jhina

    Mar 18, 2016 03:21

    We are also seeing this same bug. We start a co-routine with this code:

    WWW www = new WWW(url, System.Text.Encoding.UTF8.GetBytes(postJSONText), postHeader);
    bool hasTimeLeft = true;
    while (!www.isDone && hasTimeLeft)
    yield return null;
    hasTimeLeft = Time.realtimeSinceStartup <= startTime + _waitForDownloadSeconds;
    if (hasTimeLeft) //We didn't time out!
    //Do some stuff.

    If the internet is slow and _waitForDownloadSeconds occurs before WWW.isDone the game freezes.

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