vDesigner does not work on Safari

Hi!

On my website, people an buy product and then custom them. They go on the order details page, a button "custom your product" appear in the products listing. They click, custom the product, save in PDF.

It works great on firefox, chrome, neon; but not on safari. With safari, a file "unknow" (without any extension) is downloaded, the product is display in a new tab (like a preview), and a message "disable you pop-up blocker" appear on the product editor page. The product is not saved.

I don't have any adblock or popup blocker (I never use safari actually, so no extension at all). I disabled the safari's popup blocker without any improvement.

Any idea of where the problem comes from ?

I can't say to my clients "don't use safari" !

Thanks !