[LayaAirIDE 2.0]浏览器和微信工具都截屏不了

            //HTMLCanvas 是 Html Canvas 的代理类，封装了 Canvas 的属性和方法。。请不要直接使用 new HTMLCanvas！
            //此处将canvas指定区域进行截屏
            var htmlC = sp.drawToCanvas(100,100,0,0);
            //获取截屏区域的texture
            var _texture = htmlC.getTexture();
            //将截屏的texture进行draw绘制并显示到舞台
            var sp2 = new Laya.Sprite();
            sp2.x = 300;
            sp2.graphics.drawTexture(_texture,0,0,100,100);
            Laya.stage.addChild(sp2);