Add canonical tag to head on posts?

[sam (Sam Saffron)]

This has been raised before, we do not offer a mechanism at the moment to make the canonical for topics point at the original on WordPress.

We may add support for this one day, but there are no concrete plans yet.

This has been discussed previously here:

Duplicate Content

I was wondering the same thing about duplicate synchronized WP/Discourse content from this topic: https://meta.discourse.org/t/risk-of-duplicate-content-with-synchronized-wp-posts-discourse-topics/91737 But it got closed by Jeff Atwood saying there are already existing topics. I couldn’t find any topics that addressed this question. Please advise.