CDN的回源端口设置为80，而源站又开启了HTTP重定向至HTTPS的功能，这样的话客户端无论是通过HTTP还是HTTPS访问CDN加速域名时，CDN在回源的时候都是使用HTTP请求源站，此时会触发源站的HTTPS强制跳转逻辑，然后源站会要求CDN重新发送一个HTTPS的请求，但是CDN仍然会发送HTTP请求，就会出现反复重定向问题。
What is the Difference Between A URL And A URI?
As a developer, you’ve already heard about URL countless times. You may have also come across URI before and now you want to know what is the difference between the two if there’s any. They are often used interchangeably but we have to differentiate between the two. Before doing a comparison, let’s see what each of them means by definition.
Twenty twelve 主题免插件一段代码禁用Google Fonts
手里有一个放在国内服务器上的站点仍然使用的Twenty twelve 主题，该主题默认加载 Google fonts，但又不想安装插件。
WordPress function to get top level category of a post
How to find the top most category of a post in wordpress?
Downloading Age Restricted Videos With Youtube-DL
yt-dlp is a fork from the now troubled youtube-dl, the best part about yt-dlp aside from being actively maintained is that it follows similar commands to youtube-dl.
Automate the Boring Stuff with Python, 2nd Edition: Practical Programming for Total Beginners
The second edition of this best-selling Python book (100,000+ copies sold in print alone) uses Python 3 to teach even the technically uninclined how to write programs that do in minutes what would take hours to do by hand. There is no prior programming experience required and the book is loved by liberal arts majors and geeks alike.