Wordpress LScache Plugin: CSS/JS combine causes Firefox to block due to MIME type mismatch
Last Updated on: Wed, 15 Apr 2026 00:00:02 Hi guys, With CSS or JS combine enabled, Im seeing the following error in Firefox. It might be also be happening in other browsers, but I didnt have time to check. The resource from https://example.com/wp/wp-content/litespeed/css/bf4125adf05fef365fbfb7e934c4dc02.css?ver=4b80f was blocked due to MIME type ( text/html ) mismatch (X-Content-Type-Options: nosniff). The resource from https://example.com/wp/wp-content/litespeed/js/4eee9a184e60faaf98b1df8a86b35fab.js?ver=4b80f was blocked due to MIME type ( text/html ) mismatch (X-Content-Type-Options: nosniff) The problem is also intermittent. When I purge the cache, everything is fixed, but then a day or two later, the problem arises again unless I purge again. Any ideas? Hi, there is a known issue for CSS/JS combine file please turn it off for the time being Best regards,
LiteCache Rush: Speed comes from using less, not from doing it faster
Reference