<!doctype html> <html> <head> <title>Dummy test page</title> <meta http-equiv="Content-Type" content="text/html;charset=utf-8"></meta> </head> <body> <p>Dummy test page</p> <div id="holder" class="">Holder</div> <script> let text = ""; for (let i = 0; i < 1000; i++) { text += "more"; // eslint-disable-next-line no-unsanitized/property document.getElementById("holder").innerHTML = text; } document.getElementById("holder").classList.add("loaded"); </script> </body> </html>