<!DOCTYPE html> <iframe id="iframe" srcdoc="<div id='inner-target'>abc</div>"></iframe> Test that reparenting a text node across frame boundaries invalidates only the necessary regions in the source and destination frame. Succeeds if there is no invalidation of the entire root frame. <div id="target"></div> <script src="../../fast/repaint/resources/text-based-repaint.js"></script> <script> function repaintTest() { var target = document.getElementById("target"); var iframeElement = document.getElementById("iframe"); var textNode = iframeElement.contentDocument.getElementById("inner-target"); target.appendChild(textNode); } onload = runRepaintTest; </script>