<!DOCTYPE html> <html class="reftest-wait"> <script> function init() { var editor = document.getElementById('editor'); // invalid language will default to en-US editor.setAttribute('lang', 'testing-XX'); editor.addEventListener("focus", function() { window.setTimeout(function() { document.documentElement.className = ''; }, 0); }, false); editor.focus(); } </script> <body onload="init()"> <textarea id="editor" spellcheck="false" lang="en-US">good possible word</textarea> </body> </html>