Seems at least with the version of ubuntu (14.04) and nginx (1.6.2) that the solution for escaped URIs doesn't work -- it escapes the entire URI including path separators, leading try files to pass off to PHP for image styles (and presumably adv agg, etc)
This fixed the issue for me -- escaping only the filename:
Seems at least with the version of ubuntu (14.04) and nginx (1.6.2) that the solution for escaped URIs doesn't work -- it escapes the entire URI including path separators, leading try files to pass off to PHP for image styles (and presumably adv agg, etc)
This fixed the issue for me -- escaping only the filename: