对于页面中加载的每个元素，检查它们的方案:

For each element loaded in page, check their scheme:

• 它以 HTTPS 开头:它是加密的.
• 它以 HTTP 开头:未加密.

(您可以通过右键单击页面并选择查看页面信息"然后选择媒体"选项卡来查看 Firefox 上相对完整的列表.

(you can see a relatively complete list on firefox by right-clicking on the page and selecting "View Page Info" then the "medias"tab.

FF 仅显示图像和多媒体元素.它们也是 javascript 文件 &必须检查的 CSS.Firebug 是一个很好的工具，可以找到您需要的东西.

FF only shows images and multimedia elements. They are also javascript files & CSS ones which have to be checked. And Firebug is a good tool to find what you need.