Due to fact that Wix uses Ajax, the meta description and other page content can is viewed in the escape fragment of the page, to see this, you have to enter "/?_escaped_fragment_= " after your domain – for example, www.wix-seo-expert.com/?_escaped_fragment_= – this displays all the page's actual content.
Here is my original posted question regarding not seeing my Meta Title and Description tags as well as my content in the source code:
Below is the code you see when you view the AJAX Escaped Fragment of the same page:
Here you can see all the page's actual content. So yes, Wix does pass all that information through so you can be a SEO Hero.