Hello,

I would like to point one issue: Recently, I had posted a query (http://piwigo.org/forum/viewtopic.php?id=23079) regarding converting the SEO urls by stripping the category keywords from them such as:

Original Url: http://localhost/photos/picture/2-photoname/category/categoryname
New Url: http://localhost/photos/picture/2-photoname/

I have been able to achieve this by making some modifications in the file "include/functions_url file" as was directed to by my Piwigo team member. I know that  the Search engines also crawl the new url format as that has been mentioned as Canonical link on the picture page as well.

Taking a live example from the Demo site, I would like to highlight a few issues that are present when the canonical link page is displayed:

Original Url:-
http://piwigo.org/demo/picture.php?/120/category/Europe

Search Engine Indexed Url (After considering Canonical Url Tag)
http://piwigo.org/demo/picture.php?/120

Therefore a user who visits the photo page via Search Engine will be directed to the following url http://piwigo.org/demo/picture.php?/120

The elements missing in this page http://piwigo.org/demo/picture.php?/120 as compared to http://piwigo.org/demo/picture.php?/120/category/Europe are as follows:

a) Previous | Next Links and Image Thumbnails change because there is no 'category' present to pass the query.
b) If there is Category Menu present on Left side (Like it is present on Category Pages), even that won't display the current hierachy.
c) You are here: at the top also misses out the category structure.

I would request the team members to please look into this issue.