Product assigned to Product Free Shipping can have more than one canonical link

[mc12345678]

ZC 1.5.5.b with demo products, while reviewing possible scenarios/causes for the issue identified in Product - Music: product page displays with status OFF identified that a product assigned to the product type product_free_shipping could be loaded/displayed with main_page=product_info and that as a result the canonical link would reflect <link rel="canonical" href="http://webaddress/index.php?main_page=product_info&amp;products_id=99" />
But then the same product could be accessed by its assigned product_type (product_free_shipping) and provide a different canonical link <link rel="canonical" href="http://website/index.php?main_page=product_free_shipping_info&amp;products_id=99" /> which would indicate that the two products are different but it is known that they are actually the same product. This can be seen with products_id 99 (Free Shipping Product with Weight) of a store with demo products.

[DrByte]

The situation you describe is only caused by manually tampering with URLs, and not by links generated within the core system.

There are no plans to fix this.
It's also not specific to v1.5.5.b ... nor is it specific to product_free_shipping

[mc12345678]

There are no plans to fix this.
It's also not specific to v1.5.5.b ... nor is it specific to product_free_shipping

So, I was going to state the following: What about the fact that when looking at the product listing of say the Test Examples category (main_page=index&cPath=23) that such "free shipping" product type are designated as product_info even though they are of product type product_free_shipping and therefore it would seem that any template/template modification related to product_free_shipping would not be presented?

But then thought about "verifying the facts" and realized that the free shipping product (products_id=99) is in fact a product_info related product and not a products_free_shipping_info product. That only further supported your statement because the title of this thread is now verified wrong. :)

If I may say in the event others think that there is a fault with ZC, the only way to end up with the wrong main_page product type is by "typing" it in or navigating to the products_id of a product having a different product type than the one on the url. Navigation through the site will produce the correct url/canonical link. This is similar to having the website set to use SSL only on secure pages and changing the url say on the login page from https: to http:. One has to consciously direct the browser to a different location than intended.