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What is CORS?

In web development, you may come across the message “CORS error”. In this article, we’ll take a look at what CORS is, why it’s important, and how it applies to web development.

ASCII Code, EUC-KR, Unicode Organization

When I’m programming, I get into trouble with encoding. These days, most of the encoding is done mechanically with UTF-8, but in the past, there were some mistakes that caused problems when Hangul was entered by the wrong encoding, and if you develop it in practice…

What is Proxy?

I’ve understood it roughly, but I’ve been confused about concepts for a long time (especially forward and reverse proxies) so I’d like to take this opportunity to clear up.