I am wondering why some product links (linkURL field) from the merchant
file (XML) can open in an iframe and other products (linkURL field) from
a different merchant file(XML) goes straight to the merchant's home
page in an iframe. Do merchants exclude themselves from opening the products within an iframe? Is there a solution out there where I can use an iframe and
still pull up the product url? One merchant that I find a problem with is
LEGO. Please advise.

The page should look like http://www.wishsource.com/buynow.aspx?pid=206886_3002
with the bottom being the product page