From c1280518027080878ae8c78673a993a3640c2d97 Mon Sep 17 00:00:00 2001
From: Andreas Hocevar <andreas.hocevar@gmail.com>
Date: Fri, 10 Sep 2021 18:32:26 +0200
Subject: [PATCH] Add polyfills to legacy build preview

---
 site/index.html | 4 ++++
 1 file changed, 4 insertions(+)
diff --git a/site/index.html b/site/index.html
index c5c0fdea94..740bfff0d1 100644
--- a/site/index.html
+++ b/site/index.html
@@ -5,6 +5,10 @@
     <link href='https://fonts.googleapis.com/css?family=Quattrocento+Sans:400,400italic,700' rel='stylesheet' type='text/css'>
     <link href='https://openlayers.org/assets/theme/site.css' rel='stylesheet' type='text/css'>
     <link href="./legacy/ol.css" rel='stylesheet' type='text/css'>
+    <!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
+    <script src="https://unpkg.com/elm-pep"></script>
+    <!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
+    <script src="https://cdn.polyfill.io/v3/polyfill.min.js?features=fetch,requestAnimationFrame,Element.prototype.classList,URL,TextDecoder,Number.isInteger"></script>    
   </head>
   <body>
     <ul>
