placeholder loading when choosing a product size. How to keep original picture?

[spiritheater]

Hi!

I'm facing some issues while trying to configure Magento.

I'm trying to set up a website for clothes selling.

As you can see in this example: http://www.ptitshop.fr/homme/sweat/sweat-homme-hotrod-hellcat.html , When you  choose a size (the list under the picture, " taille* " ), the picture is changing to the magento default placeholder.

Each size refers to a simple product, with no image attached to.

We don't wan't magento to try to load the single product image (placeholder) and to keep the configurable image displayed.

How is it possible?

Thank's for reading!

[MrKhoa99]

Hello,

I checked your site. I saw that when selecting an item of dropdown box, there is an Ajax request to a custom controller. So, you should check your controller.