侧滑导航菜单里面的a标签怎么不能跳转呢？

        mui.init({  
                swipeBack: false,  
            });  
            //侧滑容器父节点  
            var offCanvasWrapper = mui('#offCanvasWrapper');  
            //主界面容器  
            var offCanvasInner = offCanvasWrapper[0].querySelector('.mui-inner-wrap');  
            //菜单容器  
            var offCanvasSide = document.getElementById("offCanvasSide");  

            //移动效果是否为整体移动  
            var moveTogether = false;  
            //侧滑容器的class列表，增加.mui-slide-in即可实现菜单移动、主界面不动的效果；  
            var classList = offCanvasWrapper[0].classList;  
            document.getElementById('offCanvasShow').addEventListener('tap', function() {  
                offCanvasWrapper.offCanvas('show');  
            });  
            document.getElementById('offCanvasHide').addEventListener('tap', function() {  
                offCanvasWrapper.offCanvas('close');  
            });  
            //主界面和侧滑菜单界面均支持区域滚动；  
            mui('#offCanvasSideScroll').scroll();  
            mui('#offCanvasContentScroll').scroll();  
            //实现ios平台的侧滑关闭页面；  
            if (mui.os.plus && mui.os.ios) {  
                offCanvasWrapper[0].addEventListener('shown', function(e) { //菜单显示完成事件  
                    plus.webview.currentWebview().setStyle({  
                        'popGesture': 'none'  
                    });  
                });  
                offCanvasWrapper[0].addEventListener('hidden', function(e) { //菜单关闭完成事件  
                    plus.webview.currentWebview().setStyle({  
                        'popGesture': 'close'  
                    });  
                });  
            }