My programer has made my website in Cold Fusion and the URLs are like
http://www.example.com/article.cfm/articleid/12345/seo-keyword-title
but the problem is the page opens even if the (seo-keyword-title) part is changed
http://www.example.com/article.cfm/articleid/12345/gibberish-keyword-title
http://www.example.com/article.cfm/articleid/12345/gibberish-blah-blah
because of which I'm facing a canonical URL problem.
Is there a way to stop them from opening on those URLs?