@0plus1: I've seen that you tried the Inject base64 string as Sprite Image
behavior. Have you tried loading the strings dynamically when needed with AJAX and then inject them in the sprites? I suppose this should work.
Another possibility: There are some custom plugins that can load images in runtime. I've used the HTML-Div Plugin
(original plugin from JesseJoh --> Kyatric's download link) for this short demo
) and it works in preview (with an "absolute image URL").Joe72012-04-01 10:53:35