Canonical URLs: How to Disable in WordPress

Canonical URL tags help eliminate self-created duplicate content in the index, which is an important addition to good SEO practices.

In the newer version of wordpress (version 2.9+) they included and canonical URL function.  Since any good SEO plugin handles these links in a better format, you can just disable the auto generated one.  Adding the following anywhere in your theme’s functions.php will solve the problem splendidly:

# Remove canonical links function
remove_action('wp_head', 'rel_canonical');