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当当618网站部分资源加载失败的有关问题

优良自学吧提供当当618网站部分资源加载失败的有关问题,当当618网站部分资源加载失败的问题 2017年618,打算趁活动有优惠在当当买点书。但是打开网页却不能领券,大部分图片也不能显示,

当当618网站部分资源加载失败的问题

2017年618,打算趁活动有优惠在当当买点书。但是打开网页却不能领券,大部分图片也不能显示,也不能打开登录界面。

活动页面是这样的(大部分图片不能显示):


当当618网站部分资源加载失败的有关问题

打开控制台看,是这样的(很多错误信息):


当当618网站部分资源加载失败的有关问题

点击『登录』后进入登录页面,是这样的(https证书被撤销(吊销),页面未能显示):


当当618网站部分资源加载失败的有关问题

点击上图的『ERR_CERT_REVOKED』,有下面的详细信息。

写道
您的连接不是私密连接

攻击者可能会试图从login.dangdang.com窃取您的信息(例如:密码、通讯内容或信用卡信息)。 NET::ERR_CERT_REVOKED
Subject: *.dangdang.com
Issuer: WoSign Class 3 OV Server CA G2
Expires on: 2018年6月24日
Current date: 2017年6月18日
PEM encoded chain:
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查看证书信息如下:


当当618网站部分资源加载失败的有关问题


当当618网站部分资源加载失败的有关问题

当当618网站部分资源加载失败的有关问题

当当618网站部分资源加载失败的有关问题

当当618网站部分资源加载失败的有关问题

从上面的信息可以看出证书是正确的,且显示有效。但是根据上面划红线的文字理解,是证书被撤销了(没续费?违规被处罚?主动要求撤销?),建立https连接时Chrome发现服务端发过来的证书在『证书撤销列表』里,继而提示错误。『证书撤销列表』是浏览器维护的一个不可用证书列表,不时更新。

但是同样的url,在火狐和safari里却可以正常显示。

由于上面的地址涉及内容较多,且有混合内容,下面以另一个地址(https://databack.dangdang.com/proxy.html)来对比三个浏览器的表现。

Chrome,提示错误,错误内容同上:


当当618网站部分资源加载失败的有关问题

Safari,无错误,正常显示:


当当618网站部分资源加载失败的有关问题

火狐,无错误,正常显示:

当当618网站部分资源加载失败的有关问题



这三者为什么有差别呢?我猜测是后两者对『证书撤销列表』更新不及时导致的。他们不知道某些证书已经标记为失效了。举个不恰当的例子:

某公司所在行业的商务活动中需要出示营业执照以表明自己的身份。大家也都是老手了,看一眼就知道是对方提供的是真的工商局颁发的还是伪造的。如果是真的,再去工商局公布的『已吊销营业执照的公司列表』里看看有没有这个公司。如果没有,这就是个正常营业的、且是他所宣称的那个公司,继续谈合作。

某天,某公司非法经营,被工商局吊销执照,然后将这个公司加入到工商局向社会公布的『已吊销营业执照的公司列表』里。

这时,上面的情形再次发生,按理说应该在查询『已吊销营业执照的公司列表』时,发现这个公司在列表里的。问题时,他们查询的时候查的是当地工商局的一个列表,当地工商局每周同步一次全国工商局的列表回来。所以,存在数据同步延后性问题,就把一些本来有问题的公司也给当做正常公司处理了。

Chrome所在地的工商局同步列表的频率高一些,后两者同步频率低一些。所以出现了上述表现不一致的问题。

既然Chreom已经知道这个证书是『已被撤销的』(从划红线的文字可以看出),为什么在显示证书的时候还显示绿色的『此证书有效』呢?

延伸阅读:http://www.linuxidc.com/Linux/2017-04/142486.htm


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