LayoutTests/fast/css/style-change-draggable-text.html

<style>
    #SHADOW { initial; -webkit-user-select: text; }
    #LABEL { -webkit-user-select: all; }
</style>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();

    window.onload = () =>  {
        window.getSelection().collapse(SHADOW);
        document.execCommand("justifyCenter", false);
    }
</script>
<span>Test changing style with draggable text. The test passes if WebKit doesn't crash or hit an assertion</span><label id=LABEL contenteditable="true"><shadow id=SHADOW></shadow><span draggable="true">a