remove loadCSS and preload woff2 icon fonts (#9976)

loadCSS was used as a polyfill for rel=preload but it seems we only used
it on a single CSS file which did not help much. Changed the icon CSS to
a blocking load and preload the woff2 variants which does work in modern
browsers (Firefox currently needs the network.preload about:config
setting but should gain proper support soon).

Co-authored-by: zeripath <[email protected]>

Author: 2 people

public/vendor/VERSIONS

@@ -23,9 +23,6 @@ Version: 2.1.10
 File(s): /vendor/plugins/emojify/emojify.custom.js
 Version: 1.1.0
 
-File(s): /vendor/plugins/cssrelpreload/
-Version: 1.3.1
-
 File(s): /vendor/plugins/dropzone/dropzone.js
 Version: 4.2.0
 

public/vendor/librejs.html

@@ -60,16 +60,6 @@
           <td><a href="http://www.freebsd.org/copyright/freebsd-license.html">Expat</a></td>
           <td><a href="https://github.com/Ranks/emojify.js/archive/1.1.0.tar.gz">emojify-1.1.0.tar.gz</a></td>
         </tr>
-        <tr>
-          <td><a href="./plugins/cssrelpreload/loadCSS.min.js">loadCSS.min.js</a></td>
-          <td><a href="http://www.freebsd.org/copyright/freebsd-license.html">Expat</a></td>
-          <td><a href="https://github.com/filamentgroup/loadCSS/archive/v1.3.1.tar.gz">loadCSS-1.3.1.tar.gz</a></td>
-        </tr>
-        <tr>
-          <td><a href="./plugins/cssrelpreload/cssrelpreload.min.js">cssrelpreload.min.js</a></td>
-          <td><a href="http://www.freebsd.org/copyright/freebsd-license.html">Expat</a></td>
-          <td><a href="https://github.com/filamentgroup/loadCSS/archive/v1.3.1.tar.gz">loadCSS-1.3.1.tar.gz</a></td>
-        </tr>
         <tr>
           <td><a href="./plugins/dropzone/dropzone.js">dropzone.js</a></td>
           <td><a href="https://github.com/enyo/dropzone/blob/master/LICENSE">Expat</a></td>

public/vendor/plugins/cssrelpreload/LICENSE

@@ -50,7 +50,6 @@
 	<meta name="go-import" content="{{.GoGetImport}} git {{.CloneLink.HTTPS}}">
 	<meta name="go-source" content="{{.GoGetImport}} _ {{.GoDocDirectory}} {{.GoDocFile}}">
 {{end}}
-
 	<script>
 	{{SafeJS `/*
 	@licstart  The following is the entire license notice for the
@@ -84,22 +83,20 @@
         for the JavaScript code in this page.
 	*/`}}
 	</script>
-
 	<link rel="shortcut icon" href="{{StaticUrlPrefix}}/img/favicon.png" />
 	<link rel="mask-icon" href="{{StaticUrlPrefix}}/img/gitea-safari.svg" color="#609926">
-	<link rel="preload" href="{{StaticUrlPrefix}}/vendor/assets/font-awesome/css/font-awesome.min.css" as="style" onload="this.rel='stylesheet'">
-	<noscript><link rel="stylesheet" href="{{StaticUrlPrefix}}/vendor/assets/font-awesome/css/font-awesome.min.css"></noscript>
+	<link rel="stylesheet" href="{{StaticUrlPrefix}}/vendor/assets/font-awesome/css/font-awesome.min.css">
 	<link rel="stylesheet" href="{{StaticUrlPrefix}}/vendor/assets/octicons/octicons.min.css">
-
+	<link rel="preload" as="font" href="{{StaticUrlPrefix}}/fomantic/themes/default/assets/fonts/icons.woff2" type="font/woff2">
+	<link rel="preload" as="font" href="{{StaticUrlPrefix}}/fomantic/themes/default/assets/fonts/outline-icons.woff2" type="font/woff2">
+	<link rel="preload" as="font" href="{{StaticUrlPrefix}}/vendor/assets/octicons/octicons.woff2?ef21c39f0ca9b1b5116e5eb7ac5eabe6" type="font/woff2">
 {{if .RequireSimpleMDE}}
 	<link rel="stylesheet" href="{{StaticUrlPrefix}}/vendor/plugins/simplemde/simplemde.min.css">
 {{end}}
 
 {{if .RequireTribute}}
 	<link rel="stylesheet" href="{{StaticUrlPrefix}}/vendor/plugins/tribute/tribute.css">
 {{end}}
-
-	<!-- Stylesheet -->
 	<link rel="stylesheet" href="{{StaticUrlPrefix}}/fomantic/semantic.min.css?v={{MD5 AppVer}}">
 	<link rel="stylesheet" href="{{StaticUrlPrefix}}/css/index.css?v={{MD5 AppVer}}">
 	<noscript>
@@ -125,9 +122,6 @@
 	<link rel="stylesheet" href="{{StaticUrlPrefix}}/vendor/plugins/vue-calendar-heatmap/vue-calendar-heatmap.css">
 {{end}}
 	<style class="list-search-style"></style>
-
-	<script src="{{StaticUrlPrefix}}/vendor/plugins/cssrelpreload/loadCSS.min.js"></script>
-	<script src="{{StaticUrlPrefix}}/vendor/plugins/cssrelpreload/cssrelpreload.min.js"></script>
 {{if .PageIsUserProfile}}
 	<meta property="og:title" content="{{.Owner.Name}}" />
 	<meta property="og:type" content="profile" />

public/vendor/plugins/cssrelpreload/cssrelpreload.min.js

@@ -9,8 +9,6 @@ var urlsToCache = [
   '{{StaticUrlPrefix}}/vendor/plugins/clipboard/clipboard.min.js',
   '{{StaticUrlPrefix}}/vendor/plugins/codemirror/addon/mode/loadmode.js',
   '{{StaticUrlPrefix}}/vendor/plugins/codemirror/mode/meta.js',
-  '{{StaticUrlPrefix}}/vendor/plugins/cssrelpreload/cssrelpreload.min.js',
-  '{{StaticUrlPrefix}}/vendor/plugins/cssrelpreload/loadCSS.min.js',
   '{{StaticUrlPrefix}}/vendor/plugins/dropzone/dropzone.js',
   '{{StaticUrlPrefix}}/vendor/plugins/emojify/emojify.custom.js',
   '{{StaticUrlPrefix}}/vendor/plugins/highlight/highlight.pack.js',