The OpenLayers `TransitionEffect='resize'` property is not working while using GeoWebcache service of GeoServer 



    var demolayer = new OpenLayers.Layer.WMS(
		"Eg", "http://localhost:8080/geoserver/gwc/service/wms",
		{
                 layers: 'Eg',
                 format: 'image/gif' ,
                 tiled: true,
                 tilesorigin: [29.06213671874999, 28.912181118327]
                },
                {attribution: '©copy rights',
                 tileSize: new OpenLayers.Size(256,256)},
                { transitionEffect: 'resize'
                }
               
              );