FastClick 导致聚焦有问题

 解决方法：

var x = target;
        var result = []
        while (x.tagName != 'BODY') {
            console.info(x.className, x.className.indexOf("needsClick"))
            if(x.className.indexOf("needsClick")>0) {
                result.push(x);
            }
          x = x.parentNode;
        }
        if(result.length>0)
            return true;