Performs sanitization of a node tree after construction to ensure that it does not contain any disallowed elements or attributes.
In general custom implementations of this class should not be necessary and all validation customization should be done in custom NodeValidators, but custom implementations of this class can be created to perform more complex tree sanitization.
- trusted → const _TrustedHtmlTreeSanitizer
A sanitizer for trees that we trust. It does no validation and allows
any elements. It is also more efficient, since it can pass the text
directly through to the underlying APIs without creating a document
fragment to be sanitized.