selectall-during-setting-innerHTML-of-documentElement.html (455B)
1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <script> 6 "use strict"; 7 8 addEventListener("DOMContentLoaded", () => { 9 const script = document.querySelector("script"); 10 script.appendChild( 11 document.createElement("iframe") 12 ); 13 document.documentElement.innerHTML = 14 `<body contenteditable><iframe onload="document.execCommand('selectAll')"></iframe>`; 15 }, {once: true}); 16 </script> 17 </head> 18 <body> 19 <div contenteditable></div> 20 </body> 21 </html>