Wrong link_rewrite format but still can be POST

[Wilfredcy]

I encountered an error the Friendly URL, as if link_rewrite input is "abc.com" , Prestashop allows to create the product instead of giving an error as "invalid field value" for friendly URL. 

Below is the request's body for the same for which I use the post method to create the product: 
Request:

<?xml version='1.0' encoding='UTF-8'?>
<prestashop>
	<product>
		<id_supplier>3</id_supplier>
		<id_manufacturer>3</id_manufacturer>
		<id_tax_rules_group>1</id_tax_rules_group>
		<width>10</width>
		<height>10</height>
		<depth>10</depth>
		<weight>10</weight>
		<id_category_default/>
		<id_shop_default>1</id_shop_default>
		<on_sale>1</on_sale>
		<ean13>1234567</ean13>
		<upc/>
		<price>889.38</price>
		<wholesale_price/>
		<ecotax/>
		<unit_price_ratio/>
		<unity/>
		<reference>Leather Bag Collection</reference>
		<active>1</active>
		<available_for_order>1</available_for_order>
		<condition>new</condition>
		<visibility>both</visibility>
		<show_price>1</show_price>
		<online_only>0</online_only>
		<name>
			<language id='1'>Leather Bag Collection</language>
		</name>
		<description>
			<language id='1'>Leather Bag Collection</language>
		</description>
		<description_short>
			<language id='1'>Short Desc</language>
		</description_short>
		<link_rewrite>
			<language id='1'>xyz.com</language>
		</link_rewrite>
		<meta_title>
			<language id='1'>Meta</language>
		</meta_title>
		<meta_description>
			<language id='1'>Meta</language>
		</meta_description>
		<meta_keywords>
			<language id='1'>Meta</language>
		</meta_keywords>
		<associations>
			<tags>
				<tag>
					<id>106</id>
				</tag>
				<tag>
					<id>28</id>
				</tag>
				<tag>
					<id>297</id>
				</tag>
			</tags>
			<categories>
				<category>
					<id>24</id>
				</category>
			</categories>
		</associations>
	</product>
</prestashop>

Response:
Product created successfully. 

Expected:
Product shouldn't be created. 

[Wilfredcy]

Anyone?