Cursor in WebGl hides on keyboard move input, and appears on mouse move

Hi, I've set at start a cursor image and set it to visible (the cursor mode was either tested in Auto and ForceSoftware

 Cursor.SetCursor(cursorTexture, hotSpot, cursorMode);
         Cursor.visible = true;

it works fine in Unity. But in WebGL ... it works, but when in use the inputs to move the player with the values of horizontal and vertical inputs, the mouse cursor hides.. and reappears when I move the mouse again.. There is NO other mouse code than in the start() function.

My update() function uses the Input.GetAxisRaw. , it seems that when the input is detected, it automatically hides the cursor. How can I avoid this behavior?