Hello,
I wasn't sure whether to post this in the 4SEO or 4SEF category.
I noticed that the Joomla Core SEF-style URLs are still accessible on my sites.
So if somebody was to type or access the URL of an article (or any page) in the Joomla Core SEF style, the URL is loaded normally.
Now, 4SEO makes it canonicalize to the 4SEF "official" variant, which is good.
But I would prefer not have these URLs accessible at all. I believe that for example back in the sh404sef days, the core SEF URLs would return a 404. Which would be good.
Or alternatively, it would be also good to redirect Joomla Core SEF URL to the "actual" 4SEF URL version. (basically just like you now made nonsef URLs redirect to 4SEF)
Please let me know, thanks!