mouse cursor is not changing in browser

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class mouseScript : MonoBehaviour {

public Texture2D cursorTexture; public CursorMode cursorMode = CursorMode.Auto; public Vector2 hotSpot = Vector2.zero;

 // Use this for initialization
 void Start () {
     
 }
 
 // Update is called once per frame
 void Update () {
     
 }
 void OnMouseEnter()
 {
     Debug.Log("texture mouse " + cursorTexture + "  cusor visiblity" + Cursor.visible); 
     Cursor.SetCursor(cursorTexture, hotSpot, cursorMode);


 }

 void OnMouseExit()
 {
     Cursor.SetCursor(null, Vector2.zero, cursorMode);
 }

}

i changed the mouse image properties texture type - cursor, read/write - enable html5 - override for webgl, max size -32 , format - RGB compressed DXT1

i used this coding to change the mouse cursor. In unity editor it was working correctly, when i export to html5 mouse cursor is not changing