I'm trying to add some microformats / microdata and Schema.org markup on one of my pages. This involves adding invalid attributes to my html elements (itemprop, itemtype and itemscope). every time I save the page with these attributes, the invalid attributes get removed from the html.
I think the WYSIWYG is doing this.
Is there a quick workaround in the TinyMCE configuration or the CMS itself that would allow these attributes, iframe elements and more to be saved to the database?