Grabbed dndbeyond's source code

```
~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js
```

ddb_main/react-jsx-parser/source/constants/attributeNames.ts

@@ -0,0 +1,7 @@
+export default {
+	class: 'className',
+	for: 'htmlFor',
+	maxlength: 'maxLength',
+	colspan: 'colSpan',
+	rowspan: 'rowSpan',
+} as Record<string, string>