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>

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

@@ -0,0 +1,35 @@
+const VOID_ELEMENTS = [
+	'area',
+	'base',
+	'br',
+	'col',
+	'embed',
+	'hr',
+	'img',
+	'input',
+	'keygen',
+	'link',
+	'menuitem',
+	'meta',
+	'param',
+	'source',
+	'track',
+	'wbr',
+]
+
+const NO_WHITESPACE = [
+	'table',
+	'tbody',
+	'tfoot',
+	'thead',
+	'tr',
+]
+
+export default VOID_ELEMENTS
+
+export function canHaveChildren(tagName: string): boolean {
+	return VOID_ELEMENTS.indexOf(tagName.toLowerCase()) === -1
+}
+export function canHaveWhitespace(tagName: string): boolean {
+	return NO_WHITESPACE.indexOf(tagName.toLowerCase()) !== -1
+}