Why should the JSP page encoding directive be the first line in the JSP?

Question

I mean the following directive

<%@ page contentType="text/html; charset=UTF-8" %> 

I have a lot of JSP. I wrote this line in a shared file that was already included in all JSPs. But this did not help, I could see a browser using a different encoding than what I indicated in the directive above.

I had to manually write this directive as the first line to solve the problem.

I ask this question in the context of the problem raised in this article.

Answer 1

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Answer 2

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