Remove meta charset from HTML5 documents (#24744)

silverwind · web-flow · commit 30d922226778 · 2023-05-16T05:13:23.000Z
When `&lt;!DOCTYPE html&gt;` is present, the default (and only valid) charset
it `utf-8` so it does not need to be specified.

Also we do serve with HTML with `Content-Type: text/html;
charset=utf-8`, so it is duplicate info anyways.
diff --git a/docs/layouts/alias.html b/docs/layouts/alias.html
@@ -1,7 +1,6 @@
 <!DOCTYPE html>
 <html{{ with site.LanguageCode | default site.Language.Lang }} lang="{{ . }}"{{ end }}>
   <head>
-    <meta charset="utf-8">
     <title>{{ .Permalink }}</title>
     <link rel="canonical" href="{{ .Permalink }}">
     <meta name="robots" content="noindex">
diff --git a/templates/base/head.tmpl b/templates/base/head.tmpl
@@ -1,7 +1,6 @@
 <!DOCTYPE html>
 <html lang="{{.locale.Lang}}" class="theme-{{if .SignedUser.Theme}}{{.SignedUser.Theme}}{{else}}{{DefaultTheme}}{{end}}">
 <head>
-	<meta charset="utf-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1">
 	<title>{{if .Title}}{{.Title | RenderEmojiPlain}} - {{end}}{{if .Repository.Name}}{{.Repository.Name}} - {{end}}{{AppName}}</title>
 	{{if .ManifestData}}<link rel="manifest" href="data:{{.ManifestData}}">{{end}}
diff --git a/templates/status/500.tmpl b/templates/status/500.tmpl
@@ -7,7 +7,6 @@
 <!DOCTYPE html>
 <html lang="{{.locale.Lang}}" class="theme-{{if .SignedUser.Theme}}{{.SignedUser.Theme}}{{else}}{{DefaultTheme}}{{end}}">
 <head>
-	<meta charset="utf-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1">
 	<title>Internal Server Error - {{AppName}}</title>
 	<link rel="icon" href="{{AssetUrlPrefix}}/img/favicon.svg" type="image/svg+xml">
diff --git a/templates/swagger/ui.tmpl b/templates/swagger/ui.tmpl
@@ -1,7 +1,6 @@
 <!DOCTYPE html>
 <html lang="en">
 	<head>
-		<meta charset="UTF-8">
 		<title>Gitea API</title>
 		<link href="{{AssetUrlPrefix}}/css/swagger.css?v={{AssetVersion}}" rel="stylesheet">
 	</head>
