使用HTTPS時要注意內容的Link

之前寫過一篇[Block] xxxxxxxxxx ran insecure content from http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css，主要是內容有用到google的jquery，但用http去取得，看起來在https下，最好都是相同的做法，比不會有問題，這時就不該在link上寫入protocol，所以應該用"//"，來取代"http://"或"https://"。

這邊轉載參考的內容如下：
// will give it a realtive protocol. Meaning that if you are accessing http://example.com then the cdn link will also use http:// whereas if you are accessing https://example.com then the cdn link will use https as well.


參考網址
Is Google's jquery CDN script link missing thew leading “https:” for a reason?