Enonic version: 6.7.3
OS: Ubuntu 14.04.5 LTS
We needed to upload an Animated GIF into Enonic, and use it as background in one page, but Enonic’s imageUrl method was making it static. See (Animated GIFs as content in CMS 4.7).
Our way out was to use attachmentUrl method instead, so we can get the full image.
It worked like a charm!