insertHTML-before-comment-at-end-of-editing-host.html (431B)
1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <script> 6 "use strict"; 7 8 addEventListener("DOMContentLoaded", () => { 9 document.querySelector("dialog").showModal(); 10 document.getSelection().extend(document.querySelector("fieldset"), 0); 11 document.execCommand("insertHTML", false, "A"); 12 }, {once: true}); 13 </script> 14 </head> 15 <body> 16 <dialog contenteditable="true"> 17 <fieldset id="b"> 18 <!-- --> 19 </fieldset></dialog></body> 20 </html>