| <script> |
| if (window.testRunner) { testRunner.dumpAsText(); } |
| function onBodyLoad() { |
| var observer = new MutationObserver(()=>{ container.replaceWith(undefined) }); |
| observer.observe(selectElement, { attributes: true }); |
| selectElement.setAttribute("attribute", "observe this attribute change"); |
| textAreaElement.setSelectionRange(1, 0); |
| window.getSelection().modify("extend", "backward", "lineboundary"); |
| sourceElement.appendChild(document.createElement("frame")); |
| } |
| </script> |
| <body onload=onBodyLoad()> |
| <textarea id="textAreaElement" draggable="true"></textarea> |
| <div id="container"> |
| <source id="sourceElement"></source> |
| <select id="selectElement"></select> |
| </div> |
| Test passes if it does not assert. |
| </body> |
