Retina (@2x) image links

Hello all -
We are on Omeka 2.3. It came to our attention yesterday that all of our item images are broken/not showing up on high-resolution monitors, such as a Mac’s retina display. This is because, for those high-resolution users, all of our item image urls are changed, presumably by some javascript, to have ‘@2x’ appended to their filenames – but we don’t have @2x versions of our images on the server, so all the images are broken.

I can’t identify where this behavior is originating from within Omeka. Does anyone know if this is a standard Omeka feature, and if so, how to disable it?

I can tell you it’s not a standard Omeka feature.

Thanks! I finally figured out that this was buried deep within our customizations.