Windows trackpad scroll not working on unity webgl build

Hi,

I found an issue of the unity webgl build on windows edge browser. Input.mouseScrollDelta always return 0 when using the laptop trackpad to scroll. I also tested with the scroll rect and it doesn't work either.

 public Text label;

  public Vector2 mouseScrollWheel;

  private void OnGUI() {

    Debug.Log(Event.current.type);

    if(Event.current.type == EventType.scrollWheel){

      mouseScrollWheel = Event.current.delta;

    }

    else{

      mouseScrollWheel = Vector2.zero;

    }

  }



  // Update is called once per frame

  void Update () {

    label.text = "scroll wheel: " + Input.mouseScrollDelta;

    label.text += "    ,ongui scroll wheel: " + mouseScrollWheel;

  }

I used the above code for testing and both are 0. Any help is appreciated. Thanks

 

same problem

 

Have you reached a solution?