[albertchui]

Originally Posted by carpeperdiem

Ok, one at a time.

Canonical is defined in
/skin/common_files/customer/service_head.tpl

you should have this:

{if $canonical_url}
  <link rel="canonical" href="{$current_location}/{$canonical_url}" />
{/if}

or this:

{if $config.SEO.canonical eq 'Y'}
  <link rel="canonical" href="{$current_location}/{$canonical_url}" />
{/if}

If anything is hard coded, it's not stock xcart. And that's wrong

yes, it's same as mentioned, the code is there:

{if $config.SEO.canonical eq 'Y'}
<link rel="canonical" href="{$current_location}/{$canonical_url}" />
{/if}