My webpages don't show any iframe or embed html code. The wymeditor preview show the page perfectly, the information is stored on the database, but the page show nothing. I'm using Rails 4.2.6 and the newest refinerycms version.
I've tried everything, this guy had the same problem https://github.com/refinery/refinerycms/issues/1991 but the solution didn't work for me.
I think the reason the fix doesn't work anymore is because of the deprecation of the allowed_tags/allowed_attributes settings. See info on that here
However, if you trust the content, you could just skip the sanitization process altogether by overriding the default template.
That will dump a couple of views into your project. Change the show template to something like this to render without sanitizing: