diff --git a/src/index.html b/src/index.html
index 5a2324c1d7d449aa55ec7ce3dada7485ed3784c2..ff5eb86174728f955ec9284173da2ebd7e94249a 100644
--- a/src/index.html
+++ b/src/index.html
@@ -14,8 +14,19 @@
<link rel="mask-icon" href="/safari-pinned-tab.svg" color="#ffffff">
<meta name="viewport" content="width=device-width, initial-scale=1">
- <link rel="manifest" href="manifest.webmanifest">
- <meta name="theme-color" content="#1976d2">
+ <link rel="manifest" href="manifest.webmanifest">
+ <meta name="theme-color" content="#1976d2">
+
+ <!-- fix error message "When using the `katex` attribute you *have to* include KaTeX files to `angular.json` or use imports" -->
+ <!-- cf. nghyd#602 -->
+ <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.4/dist/katex.min.css"
+ integrity="sha384-vKruj+a13U8yHIkAyGgK1J3ArTLzrFGBbBc0tDp4ad/EyewESeXE/Iv67Aj8gKZ0" crossorigin="anonymous">
+ <script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.4/dist/katex.min.js"
+ integrity="sha384-PwRUT/YqbnEjkZO0zZxNqcxACrXe+j766U2amXcgMg5457rve2Y7I6ZJSm2A0mS4"
+ crossorigin="anonymous"></script>
+ <script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.4/dist/contrib/auto-render.min.js"
+ integrity="sha384-+VBxd3r6XgURycqtZ117nYw44OOcIax56Z4dCRWbxyPt0Koah1uHoK0o4+/RRE05" crossorigin="anonymous"
+ onload="renderMathInElement(document.body);"></script>
</head>
<body>
@@ -163,4 +174,4 @@
<noscript>Please enable JavaScript to continue using this application.</noscript>
</body>
-</html>
\ No newline at end of file
+</html>