This plugin allows you to specify invalid HTML in the Froala WYSIWYG editor, including invalid/disallowed HTML tags and attributes. Froala offers the allowedTags and allowedAttrs options, but what if you only want to disallow one tag or one attribute? Currently with Froala's JavaScript, you would have to type out all of their allowedTags (there are 108 currently) except the one you don't want. With this plugin, you simply specify the invalidTags and invalidAttrs options.

Just register the JavaScript on your website:

<!-- Register jQuery and Froala editor JavaScript here -->
<script src="js/plugins/invalid_html.js"></script>

Then when you initialize the editor, use the invalidTags and invalidAttrs options:

$('#selector').editable({
	inlineMode: false,
	invalidTags: ['style'],
	invalidAttrs: ['style']
});

Note: There is a bug with Froala v1.2.3 (and possibly earlier versions) that prevents tags from being stripped properly from the HTML. Version 1.2.4 fixes this issue.