subfont

Index: package/lib/subsetFonts.js
===================================================================
--- package/lib/subsetFonts.js
+++ package/lib/subsetFonts.js
@@ -709,9 +709,12 @@
   'optional',
 ];
 
 function getCodepoints(text) {
-  const codepoints = text.split('').map((c) => c.codePointAt(0));
+  const codepoints = [];
+  for (const c of text) {
+    codepoints.push(c.codePointAt(0));
+  }
 
   if (!codepoints.includes(32)) {
     // Make sure that space is always part of the subset fonts (and that it's announced in unicode-range).
     // Prevents Chrome from going off and downloading the fallback: