HTML.ForbiddenElements
TYPE: lookup
VERSION: 3.1.0
DEFAULT: array()
--DESCRIPTION--
<p>
This was, perhaps, the most requested feature ever in HTML
Purifier. Please don't abuse it! This is the logical inverse of
%HTML.AllowedElements, and it will override that directive, or any
other directive.
</p>
<p>
If possible, %HTML.Allowed is recommended over this directive, because it
can sometimes be difficult to tell whether or not you've forbidden all of
the behavior you would like to disallow. If you forbid <code>img</code>
with the expectation of preventing images on your site, you'll be in for
a nasty surprise when people start using the <code>background-image</code>
CSS property.
</p>
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