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Using full optimization, including guest mode and excluding certain files from delay and combination.
Excluded files have their version removed. For example, before optimization, the script appears as:
<script type="text/javascript" src="https://projectdmc.org/wp-content/themes/mytheme/myfile.js?0_013" id="myfile-js"></script>
However, in the cached version, it’s served as:
<script type="text/javascript" src="https://projectdmc.org/wp-content/themes/mytheme/myfile.js" id="myfile-js"></script>
This causes obvious cache issues, resulting in significant discrepancies due to the missing version parameter, which prevents proper cache invalidation.