html document 的字符编码问题： content-type 与 meta charset 的区别？

已知:content-type 指代 HTML 协议的 payload 的类型与编码, 当 payload 是 html document 时，假设 content-type 中 charset 是 A ，
那么浏览器会以 A 来解码这个 html document 吗？当浏览器解析 document 匹配到 meta 标签时，如果 meta 标签里的 charset 是 B ，浏览器接下来来会如何解析这个 document ？会换用 B 去解码接下来的字符吗？ meta charset 这种设计的应用场景是哪里呢？

Do both. The header takes precedence, but if the HTML page is accessed locally, there are no HTTP-headers, so you want to have <meta charset="..."> as a safety mechanism.

In HTML5, they are equivalent. Use the shorter one, as it is easier to remember and type. Browser support is fine since it was designed for backwards compatibility.

https://stackoferflow.com/questions/4696499/meta-charset-utf-8-vs-meta-http-equiv-content-type

content-type 指代 HTML 协议的 payload 的类型与编码
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content-type 指代 HTTP 协议的 payload 的类型与编码