httpとhttpsが混じるのが原因だからサーバー側の問題
https://aikru.com/2011/&;page=1
↓
http://aikru.com/archives/2011/&;page=1
↓
https://aikru.com/archives/2011/&;page=1
↓
Mixed Content: The page at 'https://aikru.com/archives/2011' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://aikru.com/archives/2011/&;page=1'. This request has been blocked; the content must be served over HTTPS.