| <html> | |
| <head> | |
| <script> | |
| var doMutation = function() { | |
| var region = document.getElementById("to_mutate"); | |
| var new_child = document.createElement("div"); | |
| new_child.appendChild(document.createTextNode("New child text contents")); | |
| region.appendChild(new_child); | |
| window.setTimeout(function() { window.close(); } ); | |
| } | |
| window.addEventListener("load", doMutation); | |
| </script> | |
| </head> | |
| <body> | |
| <div id="to_mutate" aria-live="polite" aria-relevant="additions" aria-atomic="true"> | |
| Original contents. | |
| </div> | |
| </body> | |
| </html> |