UnsupportedFormatError if normalizerFactory.spec does not support Format.XML.
Static ReadonlycannotIndicates whether this functionality cannot act.
Always false in web browsers: no optional dependencies are involved,
the platform-native "XMLSerializer" is used.
Protected_Protected_Optionaloptions: SerializerOptions & NormalizerOptionsMissingOptionalDependencyError, when a required dependency was not installed
XML serializer for web browsers.