classic ASP with non-english languages special characters as boxes - character-encoding

I am currently working on Classic ASP for one of my project. For non English languages I am getting boxes instead of special characters. I am rendering using UTF-8 but sometimes the characters goes to boxes. It comes back normal when I click refresh sometimes.
I followed all the steps below but i still get this problem
XML:
<xml version="1.0" encoding="UTF-8">
HTML:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
content-type: text/html; charset=utf-8
Am I missing anything here? Thanks.

Add this to your page:
Response.CodePage = 65001
Response.CharSet = "utf-8"
It should display all correctly now.
Hope that helps

It's amazing BUT nobody gives a complete answer on what to do this PROPERLY... I hope this help somebody like me, because it was so hard to find the whole picture...
---------------- PREVIOUS CONSIDERATIONS --------------
FIRST, make sure IIS IS NOT replacing the Code Page... Go to IIS, click the Website, open ASP module, on Behavior it should be >> Code Page = 0
SECOND, The file itself should be checked, YES! the file... open your file explorer on windows (my computer), go to the folder where the files of your website are, take for example "default.asp", right click >> open with >> notepad THEN click on File >> Save As... IN THE DIALOG at the bottom says "Encoding", make sure it has UTF-8, otherwise you will have to add the
<meta http-equiv="content-type" content="text/html; charset=UTF-8"> in every page (including server side includes), which is not correct.
---------------- CORRECT STRUCTURE OF THE PAGE --------------
<%#LANGUAGE="VBSCRIPT" CODEPAGE="65001"%><%
Response.AddHeader "Content-Type", "text/html;charset=utf-8"
%><!-- #include virtual="/conexion.asp" -->
<!DOCTYPE html>
<html lang="es">
<head>
<meta charset="utf-8">
</head>
<body>
áéíóú
</body>
</html>
It should work fine now with QueryStrings, Database and regular HTML... uffff

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The problem was solved by ensuring that the source file in Visual Studio 2017 was saved with the correct UTF-8 encoding.
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I have an mvc solution with a standard view using _Layout page for layout. Layout page has charset=utf-8 set in the header like so:
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£
but was wondering why does it happen?
It may have happened because of a mismatch between <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> and the encoding of your physical file.
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How to
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Look for the rel="alternate" type="application/rss+xml" link in the head section of the site's defalut page:
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As mentioned in this question How to check if a site has rss feeds
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Grails interprets and closes HTML meta tag

In my Grails GSP file I'm using the HTML meta tag:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
The problem is that Grails closes this tag and renders it as:
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Follow up:
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Not sure that this is the most beautiful solution, but at least it will work for your case:
<%= '<meta http-equiv="Content-Type" content="text/html; charset=utf-8">' %>
Well...this does not work since it is preprocessed by Grails before displayed as is.
So the only solution I see is to create a TagLib and output the content like this:
class MetaTagLib {
static namespace = 'my'
def meta = {
out << "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"/>"
}
}
and use it like:
<my:meta />
It works. Tested.
You could validate as HTML5 instead of HTML 4.01, by using <!DOCTYPE html> (that's it, really!). HTML5 allows trailing slashes even in the HTML syntax, in order to allow for systems like this that produce pseudo-XHTML.
Of course, HTML5 is not yet a finished standard; it may change. I think that this aspect of it is unlikely to be changed, but there is still some fairly contentious debate about a lot of the new HTML5 features, so keep in mind that it's not yet finalized.

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I need to be able to send the content type "text/xml" to Firefox and Safari, to allow them to render inline SVG in one of my pages.
This works, as long as the content type is "text/xml".
However, when IE hits the page, if the content type is not "text/html" it tries to render the XML document tree, rather than the XHTML content of the page.
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Keep in mind that I am going to be rendering the views as ViewResults.
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Chrome text/xml
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All of the browsers listed support SVG inline in some way or another. I have a consistent delivery format, save the content type.
You could look at the properties in Request.Browser and sniff out IE that way, and return the proper view that way, though that is prone to issues. This isn't optimal because IE might support it in the future.
public ActionResult MyAction() {
if (this.Request.Browser.Browser == "IE") {
return View("NonSVG");
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}
Something worth looking into a little more might be this page on Codeplex. They define a property on Browser called AcceptsImageSVG, but it looks like it's geared towards mobile browsers, don't know if it could be used in your situation.
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I'm not sure whether this will work, but you could try using conditional comments:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<!--[if lte IE 8]>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<![endif]-->
<!--[if gt IE 8]>-->
<meta http-equiv="Content-Type" content="text/xml; charset=UTF-8" />
<!--<![endif]-->
<title>Test page</title>
</head>
<body>
<p>Test page</p>
</body>
</html>
Or, better yet, use HTML5:
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<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Test page</title>
</head>
<body>
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</body>
</html>
You don't even need to specify the content type.

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