访问StackOverflow看到一个提示:
Stack Overflow requires external JavaScript from another domain, which is blocked or failed to load.
然后看源码发现是因为外链的jQuery CDN打不开了
http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js
Stack Overflow requires external JavaScript from another domain, which is blocked or failed to load.
然后看源码发现是因为外链的jQuery CDN打不开了
http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js