3D FlipBook - Safari issue, renedring safari-fa-init.html content before the image

Hi all, I've an issue on loading the jquery plugin only from safari. Before the loader was renderized I see for as long time as depending on the connection quality, the content of safari-fa-init.html file.

I downloaded your demo page that link to licensed library and expose it on this url: http://centauri.proximainformatica.com/bookreader-widget Currently I've the 1.11.5 licensed version Thanks.