[wp-trac] [WordPress Trac] #18660: Enhance rel_canonical function, add filter

[WordPress Trac]

#18660: Enhance rel_canonical function, add filter
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 Reporter:  nathanrice                           |       Owner:
     Type:  enhancement                          |      Status:  new
 Priority:  normal                               |   Milestone:  Awaiting
Component:  Canonical                            |  Review
 Severity:  normal                               |     Version:  3.3
 Keywords:  has-patch needs-testing 2nd-opinion  |  Resolution:
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Comment (by nathanrice):

 Replying to [comment:3 scribu]:
 > Why is this needed, when we also have canonical redirects?

 Because canonical redirects don't correct all malformed URLs. Consider
 something like this:

 `http://example.com/?referrer=wordpress.org`

 No redirect. The canonical tag helps search engines know that when people
 link to the homepage with a malformed URL, you want pagerank to pass to
 `http://example.com/` and not the other URL (seen by Google as two
 different pages).

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Ticket URL: <http://core.trac.wordpress.org/ticket/18660#comment:4>
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