Drupal theming has a trick to exclude CSS file of a base theme in a subtheme. You simply include the filenames of CSS files to exclude it in your info file. Then, if your subtheme doesn't have these files, the files are "overriden" to null state, meaning they are not included on the page.
With AdvAgg these files are still referenced in the page source, probably causing lots of issues (disabled page cache, empty aggregates). But I'm sure this is issue with AdvAgg because when I view the page with ?advagg=0 these files are not included.

Update

I forgot to add this happens not with the base theme CSS files only, but with any overriden CSS files (including core modules').

CommentFileSizeAuthor
#4 advagg_skip_missing_theme_files_1844008.patch509 bytescrea

Comments

crea’s picture

crea commented

Basically AdvAgg seems to not completely replicate drupal_get_css() logics.

crea’s picture

crea commented
Title: AdvAgg has problems with overriden CSS files in a subtheme » AdvAgg has problems with non-existing CSS files while overriding base theme and module styles
Priority: Normal » Major

This is major, if not critical problem. For me it caused page cache to completely stop working, and caused different strange problems - empty aggregate files, broken CSS links.

crea’s picture

crea commented

I've managed to fix the problem for myself by clearing all non-existant files from the $vars['css'] in my own page preprocess hook.

crea’s picture

crea commented
Title: AdvAgg has problems with non-existing CSS files while overriding base theme and module styles » AdvAgg has problems with missing CSS files while overriding styles in the theme
StatusFileSize
new advagg_skip_missing_theme_files_1844008.patch509 bytes
crea’s picture

crea commented
Status: Active » Needs review
crea’s picture

crea commented

Looks like we also have to clean the advagg_files table from the missing files.

nikhilsukul’s picture

nikhilsukul commented

Is this patch works? We are facing problems as when advagg css file is requested we get 404 error sometimes, not always. Is this a related issue as discussed here: http://drupal.org/node/1681712?

mikeytown2’s picture

mikeytown2 commented
Status: Needs review » Fixed

Thanks for the patch it has been committed :)
Open to idea on how to clean up the advagg_files table.

Status: Fixed » Closed (fixed)

Automatically closed -- issue fixed for 2 weeks with no activity.

Anonymous’s picture

(not verified) commented
Issue summary: View changes

update