Hi Dear,
I add an new char field to product.product as a "product_url" widget="url"
I need to add this field to qweb report for sale order where the cusomer could use this soft copy from sale order to visit product data sheet for more info.
I used the the following attribute:
<a href="line.product_id.product_url">data sheet link</a>, after print sale order pdf and click on data sheet link the attribute act as follow
http://localhost:8069/line.product_id.product_url not went to product data sheet link