When cached HTML links to deleted Autoptimized CSS/ JS the page is badly broken … no more with a new (experimental) option in AO27 to use fallback CSS/ JS which I just committed on the beta branch on GitHub.
For this purpose Autoptimize hooks into template_redirect
and will redirect to fallback Autoptimized CSS/ JS if a request for autoptimized files 404’s.
For cases where 404’s are not handled by WordPress but by Apache, AO adds an ErrorDocument directive in the .htaccess-file redirecting to wp-content/autoptimize_404_handler.php
. Users on NGINX or MS IIS or … might have to configure their webserver to redirect to wp-content/autoptimize_404_handler.php
themselves though, but those are smart cookies anyway, no?
If you want to test, you can download Autoptimize 2.7 beta here and replace 2.6 with it.
Just a note, thank you for working on this feature! It should greatly reduce the number of Google Web Tools emails about clickable elements too close together etc.
Great to read this is valuable to you Gwyn 🙂