THINKGlobalSchool/Elgg — comment on commit 07db10880bd0973da1044adb089de00fa5a38cbd
File:  line 0
By jrtilson:

In our environment, we are having tons of issues getting simplecached CSS and JS to cache in the browser. This problem also seems to exist on a clean elgg install, with only core plugins activated. We noticed that the new embed 1.8.1 plugin was the culprit when it calls:

elgg_load_css('lightbox');

When commenting out this line, the JS/CSS cached normally. When you properly register the simplecache view for the lightbox CSS, everything seems to work great. I'm not sure if this is a complete fix, but it helps.