Autoptimize is a popular tool for speeding up WordPress sites by aggregating, minifying, and caching JavaScript, but pairing it with the Divi theme can introduce its own set of problems. Since Divi relies heavily on jQuery and script-dependent modules, aggressive optimization settings can easily break sliders, animations, or entire sections of a page if not configured carefully.
Why the Conflict Happens
JavaScript conflicts between Divi and Autoptimize usually come down to execution order. Divi’s built-in scripts often depend on jQuery loading and running in a specific sequence, and when Autoptimize aggregates or defers scripts without accounting for that order, interactive elements can break. Common symptoms include stuck sliders, missing animations, misaligned page elements, or modules that simply stop functioning on the front end.
Getting Autoptimize Configured Correctly
A few core settings tend to make the biggest difference when running Autoptimize alongside Divi:
- Enable JavaScript optimization, but avoid aggressive aggregation that bundles too many scripts together
- Exclude jQuery and Divi’s core scripts from optimization to preserve their intended loading order
- Use “don’t aggregate but defer” for scripts that are critical to page functionality
- Exclude WooCommerce and tracking scripts, since these often have their own loading requirements
- Consider pairing Autoptimize with Async JavaScript for more granular control over script execution
Troubleshooting When Something Breaks
If a conflict shows up after changing settings or updating either plugin, a systematic approach works better than guessing:
- Check the browser console for JavaScript errors or missing functions, since this usually points directly to the problematic script
- Deactivate all plugins except Divi and Autoptimize, then reactivate the rest one at a time to isolate the culprit
- Adjust Autoptimize’s settings gradually rather than making several changes at once, so it’s clear which change fixed or caused the issue
- Try the “force JavaScript in head” option if scripts appear to be executing out of order
Real-World Cases Worth Knowing About
Some conflicts have been specific to particular Divi or Autoptimize updates rather than general misconfiguration. For example, after one Divi update, front-end JavaScript stopped working entirely for some site owners, even with correct exclusion settings in place, and was only resolved by enabling Autoptimize’s “add try-catch wrapping” option. Cases like this are a reminder that keeping both Divi and Autoptimize updated, and checking plugin support forums when something unusual happens, can save a lot of troubleshooting time.
Testing After Changes
After adjusting any settings, always clear both Autoptimize’s cache and any separate caching plugin or hosting-level cache, then test the site in an incognito window to rule out stale cached files masking or mimicking the real issue. It’s also worth testing on both desktop and mobile, since script loading order sometimes affects one more than the other.
Join The Discussion
Have you run into JavaScript conflicts between Divi and Autoptimize on your own site, or found a specific setting combination that worked well? Share what fixed it for you below.
