Custome Url problem

Hi all

I’m using cells to position images which link to my products in woocommerce, my problem is that when I create a custom url the link does not work. Looking closer at the issue it looks like when I past in the permalink on the image to link to the product, i.e. http://www.mysite.com/products/some-product the link fails and the image does not display correctly, clicking on the broken image it appears that my domain name is being pretended to the permalink so the url now looks like:
http://www.mysite.com/http://www.mysite.com/products/some-product
Strangely enough adding this /products/some-product, as the permalink does work.
Can anyone shed light on this?

Thanks

Andy