SEF Active "force canonical URLs on listings" with several canonical

Hi,

Then either you have an old view override of the file product / listing_img_title.php which doesn't take into account the canonical URL as this field and the force canonical URL setting didn't exist before; or you're accessing the product page from something listing the products without taking into account the canonical URL (for example, a third party product listing carousel module).
I can see that the canonical URL of the product of your example corresponds to the first link you provided. So the question is where did you find the second URL which doesn't correspond to the canonical URL ?

Hi,

Yes. The problem is that there is no mechanism in Joomla's API to communicate the canonical URL. That's why HikaShop has to add it. Even worst, the SEF system plugin can be configured to add the current URL of a page as canonical URL on all the pages of the website, which defeat the purpose of "canonical URLs" which has to be unique for different pages with the same content.
Similarly, I don't see why the template would add the canonical URL tag itself to all the pages as being the current page. But maybe they have a good reason for this ?
Anyways, it's great that the problem is solved for you.