HTMLTemplateElement: shadowRootSerializable property

Baseline 2024

Newly available

Since ⁨September 2024⁩, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The shadowRootSerializable property reflects the value of the shadowrootserializable attribute of the associated <template> element.

Note that this property is not useful for developers. If a <template> element is used to declaratively create a ShadowRoot, then this object and property do not exist. Otherwise, if an HTMLTemplateElement is created, the value of this property is irrelevant because the object is not a shadow root and cannot subsequently be changed to a shadow root.