When front‑end functionality or visuals break after enabling optimizations, the key is to isolate changes
and roll back systematically. Start by clearing all relevant caches: the plugin cache, any server‑level
caches (e.g., from hosting panels), and CDN caches. Then work backward through your most recent changes
in the plugin. If you enabled multiple features at once, disable them in reverse order—e.g., turn off JS
defer, then JS minify, then CSS minify—testing the site after each toggle. This process will quickly
identify whether one specific transform is causing the issue.
Open the browser console for errors, which often point to a missing dependency, a script that must run
before others, or a file that was incorrectly minified. Add problematic files to the plugin’s exclusion
list (“Escape Minify”) or avoid deferring those specific scripts. Check the network tab for 404s or
mixed content errors if you recently switched protocols or domains. If .htaccess was
updated, confirm that the expected Expires and Cache-Control headers are
present and that no duplicated or conflicting directives exist from prior plugins.
For image or media issues, temporarily disable lazy loading to see if rendering stabilizes; add
exclusions for logos, hero images, and sliders if needed. With this disciplined approach—purge, isolate,
exclude, and retest—you can resolve most issues quickly while maintaining the bulk of your performance
gains.