attr values in wp_kses

[WraithKenny]

It'd be great to be able to sanitize or whitelist values for attributes on certain elements in the kses functions. Perhaps a filter in wp_kses_attr(), or alternatively by passing a callback to the attribute array instead of 'true' or 'array()'.

[WraithKenny]

the filter would probably be a one liner, but the handling of a callback, a little more difficult...

[WraithKenny]

Sorry, just remembered that feature requests go to idea at wordpress.org

​http://wordpress.org/extend/ideas/topic/filtering-values-of-attributes-for-html-elements-passed-to-wp_kses

[SergeyBiryukov]

Related: #20210