What is wrong with the CNC setup of the product catalog (catalog)?

Question

1C-Bitrix

Hi all. Tell me if it’s not configured correctly or is it Bitrix)))
There are the following CNC settings for the product catalog

"SEF_MODE" => "Y",
"SEF_FOLDER" => "/catalog/",
"SEF_URL_TEMPLATES" => array(
    "sections" => "catalog/",
    "section" => "#SECTION_CODE#/",
    "element" => "#SECTION_CODE#/#ELEMENT_CODE#/",
    "compare" => "compare/?action=#ACTION_CODE#",
    "smart_filter" => "#SECTION_CODE_PATH#/filter/#SMART_FILTER_PATH#/",
),

Well, or so, to whom it is more convenient

So now my CNC works a little strangely.
Category addresses
/catalog/category1/ - Works
/catalog/category1 - 404 (No slash at the end)
Product addresses
/catalog/category1/product/ - Works
/catalog/category1/product - 404 (No slash at the end)
/catalog/ VINIPUKH / product / - Anything to write in the product category block will still open the product.
There are a lot of duplicates on the site. Did I set something up wrong, or is it still a feature of Bitrix and how to solve this problem?

Answer 1

The fact that a page with a slash at the end and one without is essentially a different page is correct. You can set up a redirect in .htaccess.
You can try to get rid of duplicate products by setting the parameter "DETAIL_STRICT_SECTION_CHECK => 'Y'" in the settings of the catalog component. But, if the goods are in several sections, then this will not help and you will have to check the existence of the goods "by hand".