@ben The rel="canonical" tag does not work in Elements CMS.
While checking and reviewing the source code, I just discovered that for blog posts in Elements CMS, the SLUG is not being correctly replaced in the rel="canonical" tag.
See the screenshot.
It would be great if this could be fixed so that the blog posts can be indexed by Google.
Also, when I activate the Open Graph meta tags under the CMS item, they are also not being replaced or outputted.
could you send me a project with the issue so I can take a closer look? 
Thanks! I’ve just checked this here and…
I’ve added both of these to the list and will get to them ASAP
just been digging in to this some more, and the open graph stuff does work on published sites — it won’t work in some situations when previewing locally due to some technical reasons.
The canonical link is more tricky, we will need to add a feature to Elements to make this happen. I can’t say when we’ll get around to this as we have a few other pressing issues we need to get to first.
Wouldn’t it maybe be a simple solution to take the “slug” from the markdown frontmatter and use that?
Anyway, I’ve now started creating “blog articles” directly in Elements. That way all the {{ item.parameter }} are included, the correct canonical is applied, and I save myself the redirect to the “pretty URL”
