Screenshot showing Chrome Developer tools, Network tab, showing problem with load-styles.php in WP due to ARR buffer issue
Highlighting secondary issue revealed by post-rewrite-gzip failure - the size of this document, load-styles.php, exceeds the ARR buffer threshold.

This screenshot shows how the load-styles.php doesn’t complete due to the ARR threshold being low enough to trigger the buffer which doesn’t seem to work. If the file was gzipped then it wouldn’t trigger the threshold. I’ve raised the threshold very high, but also added a condition to not clear the encoding accept request allowing this file to be returned as a gzip (doesn’t need checking by the rewrite module).

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