Here is a surprise that I have discovered since I have upgraded Yuzo-related-post to yuzo-pro:
yuzo pro is incompatible with autoptimize option ‘Also aggregate inline CSS?’.
This is because yuzo-pro assign a unique HTML id having a random component that change at every page load.
related posts does not have that feature. The effect of that was that autoptimize cache was growing endlessly because the CSS was never identical.
To fix my problem, all that was needed was to uncheck ‘Also aggregate inline CSS?’ option but this made curious. What benefits having a random and unique id for the yuzo pro widget gives? Be able to host many widgets on a single page?
This topic was modified 3 weeks, 3 days ago by Olivier Langlois. Reason: reword my question