博客园报错 Mixed Content: The page at 'xxx' was loaded over HTTPS, but requested an insecure fa

报错内容：

Mixed Content: The page at 'https://www.cnblogs.com/qq2806933146xiaobai' was loaded over HTTPS, but requested an insecure favicon 'http://common.cnblogs.com/favicon.ico'. This request has been blocked; the content must be served over HTTPS.

对策：

这是因为博客园的logo是引用的http的地址而博客园js不再支持http引用logo，需要我们在博客园后台管理-博客侧边栏公告种加入下面的代码：