pan is not working in iPhone

viewer.addHandler('canvas-drag', function(e){
		  Toast("canvas drag");
		  if( e.originalEvent.pointerType !="touch" || !isDrawingMode) return;
		  console.log('drag');
		  console.log(e);
		  dragAmount++;
		  if( true ){
			//console.log('panning');
			var x = e.originalEvent.clientX - startx;
			var y = e.originalEvent.clientY - starty;
			var point = new OpenSeadragon.Point(-x, -y);
			var panBy = viewer.viewport.deltaPointsFromPixels(point);
			viewer.viewport.panBy(panBy);
			startx = e.originalEvent.clientX;
			starty = e.originalEvent.clientY;
		  }
		});

this code is working in android phone but not working on iPhone. Is there something missing or wrong ?

[salman-git]

Thanks. It works now.

[salman-git]

I have tried with OSD position position property and it didn’t work. I will try touches array.