Update to MathJax 4

hattya · hattya · commit 813584a9f06a · 2025-08-05T21:40:23.000+09:00
diff --git a/md2html.go b/md2html.go
@@ -27,7 +27,7 @@ import (
 
 const (
 	highlightJS = "https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11/build"
-	mathJax     = "https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"
+	mathJax     = "https://cdn.jsdelivr.net/npm/mathjax@4/tex-mml-chtml.js"
 	mermaid     = "https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs"
 )
 
@@ -158,8 +158,7 @@ func convert(r io.Reader, w io.Writer) (err error) {
 	}
 	// MathJax
 	if *m {
-		fmt.Fprintln(w, `<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>`)
-		fmt.Fprintf(w, "<script id=\"MathJax-script\" async src=\"%s\"></script>\n", mathJax)
+		fmt.Fprintf(w, "<script defer src=\"%s\"></script>\n", mathJax)
 	}
 	// Mermaid
 	if *diag {
diff --git a/testdata/m.html b/testdata/m.html
@@ -6,8 +6,7 @@
 <link rel="stylesheet" href="${highlight.js}/styles/github.min.css">
 <script src="${highlight.js}/highlight.min.js"></script>
 <script>hljs.highlightAll();</script>
-<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
-<script id="MathJax-script" async src="${MathJax}"></script>
+<script defer src="${MathJax}"></script>
 </head>
 <body>
 <article class="markdown">

Original file line number	Diff line number	Diff line change
`@@ -27,7 +27,7 @@ import (`
`27`	`27`
`28`	`28`	`const (`
`29`	`29`	`highlightJS = "https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11/build"`
`30`		`- mathJax = "https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"`
	`30`	`+ mathJax = "https://cdn.jsdelivr.net/npm/mathjax@4/tex-mml-chtml.js"`
`31`	`31`	`mermaid = "https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs"`
`32`	`32`	`)`
`33`	`33`
`@@ -158,8 +158,7 @@ func convert(r io.Reader, w io.Writer) (err error) {`
`158`	`158`	`}`
`159`	`159`	`// MathJax`
`160`	`160`	`if *m {`
`161`		- fmt.Fprintln(w, `<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>`)
`162`		`- fmt.Fprintf(w, "<script id=\"MathJax-script\" async src=\"%s\"></script>\n", mathJax)`
	`161`	`+ fmt.Fprintf(w, "<script defer src=\"%s\"></script>\n", mathJax)`
`163`	`162`	`}`
`164`	`163`	`// Mermaid`
`165`	`164`	`if *diag {`