look at the URLs below:
1. /essays/technical-essays/180-technologies/247-megapixel
2. /essays/technical-essays/247-megapixel
3. /essays/technical-essays/technologies/247-megapixel
4. /essays/technical-essays/technologies/247-
the right URL is the third one. but the product page shows up with other three URLs. notice that the forth URL is incorrect and incomplete and an 404 error should be thrown. there are a lot of articles like this reported on google console as "duplicate title tag". this means google has found these as separate pages.
in Joomla there is no where to assign canonical tag for articles to solve duplicate content issue. is there any solution to solve this?