gecko-dev/editor/reftests/spellcheck-superscript-2.html

зеркало из https://github.com/mozilla/gecko-dev.git
<!doctype html>
<textarea spellcheck=false>&sup1; &sup2; &sup3; mispeled</textarea>
<script>document.body.firstChild.focus()</script>
	`<!doctype html>`
	`<textarea spellcheck=false>¹ ² ³ mispeled</textarea>`
	`<script>document.body.firstChild.focus()</script>`