Print cart button conflict with iframe links

-- HikaShop version -- : 2.3.4
-- Joomla version -- : 3.3.6
-- PHP version -- : 5.4.28
-- Browser(s) name and version -- : All major browsers
-- Error-message(debug-mod must be tuned on) -- : None

Dear developers,

We have a webshop with on product pages an iframe link. This link works.
We also have the shopping cart showing on those pages. In here there is a print cart button. This link also works.
When we click on the print cart button it opens up the preview(chrome) and we can print. So this is working.
When we open the iframe link on a page where the cart is not visible then it shows the content of the iframe. So this also works.

BUT:

When we click on the iframe link on a page where the print cart button is visible then it opens the iframe and starts the print action.

Any idea how to solve this.

Greetings and thanks in advance.

Dear Developers, Users and Contributers,

The solution is actually quite simple. In the configuration of hikashop we changed the option popup mode to "Mootools" and now it is solved.
You can find this at: Hikashop > Configuration > Display > General Display Options.

Greetings