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Test Info:
<script>↩
function onLoad() {↩
// For emulating the traditional behavior, collapse Selection to end of the↩
// text node in the <textarea> which is the last child of the <body>.↩
// However, it may be omitted by the parser. Therefore, this test tries to↩
// check the text node, but if it does not exist, uses the <textarea>.↩
const textarea = document.querySelector("textarea");↩
const textareaOrTextNode = textarea.lastChild ? textarea.lastChild : textarea;↩
getSelection().collapse(textareaOrTextNode, textareaOrTextNode.length);↩
document.querySelector("script").appendChild(↩
document.querySelector("li[contenteditable=false]")↩
);↩
document.execCommand("indent");↩
document.execCommand("delete");↩
}↩
</script>↩
<body onload="onLoad()">↩
<ul contenteditable>↩
<li contenteditable="false">↩
<textarea autofocus>↩
</textarea>></li></ul></body>↩