{ "allowfullscreen": [ "iframe" ], "allowtransparency": [ "iframe" ], "async": [ "script" ], "autofocus": [ "button", "input", "keygen", "select", "textarea" ], "autoplay": [ "media" ], "checked": [ "input" ], "controls": [ "media" ], "default": [ "track" ], "defer": [ "script" ], "disabled": [ "button", "fieldset", "input", "keygen", "optgroup", "option", "select", "textarea" ], "disablepictureinpicture": [ "video" ], "formnovalidate": [ "button", "input" ], "loop": [ "media" ], "multiple": [ "input", "select" ], "muted": [ "media" ], "nomodule": [ "script" ], "novalidate": [ "form" ], "open": [ "details", "dialog" ], "playsinline": [ "media", "video" ], "readonly": [ "input", "textarea" ], "required": [ "input", "select", "textarea" ], "reversed": [ "ol" ], "scoped": [ "style" ], "seamless": [ "iframe" ], "selected": [ "option" ] }