Wordpress LScache Plugin: Conflict with remove query string functions
Last Updated on: Wed, 15 Apr 2026 00:00:02 Since version 1.0.15, LiteSpeed Cache conflicts with code remove query strings: function remove_cssjs_ver( $src ) if( strpos( $src, ?ver= ) ) $src = remove_query_arg( ver, $src ) return $src add_filter( style_loader_src, remove_cssjs_ver, 10, 2 ) add_filter( script_loader_src, remove_cssjs_ver, 10, 2 ) File has removed query string will not be cached anymore. https://demo.wpcanban.com/?t/plugins/simple-social-icons/svgxuse.js (expiration not specified) https://demo.wpcanban.com/?s/js/flexslider/jquery.flexslider.min.js (expiration not specified) https://demo.wpcanban.com/?es/genesis/lib/js/menu/superfish.args.js (expiration not specified) https://demo.wpcanban.com/?/themes/genesis/lib/js/menu/superfish.js (expiration not specified) https://demo.wpcanban.com/?ontent/themes/paradise/js/back-to-top.js (expiration not specified) https://demo.wpcanban.com/?emes/paradise/js/responsive-menus.min.js (expiration not specified) https://demo.wpcanban.com/?radise/wp-includes/js/hoverIntent.min.js (expiration not specified) https://demo.wpcanban.com/?includes/js/jquery/jquery-migrate.min.js (expiration not specified) https://demo.wpcanban.com/?paradise/wp-includes/js/jquery/jquery.js (expiration not specified) How to fix this? Thanks so much! Hi @kaiderella Could you rephrase your question? I dont quite understand what the issue is. One thing to note, our plugin does not cache static files (.js, .css) anyway. Thanks, Kevin Dear Kevin, When I remove query string, Google PageSpeed Insights will report JS files uncached: https://goo.gl/photos/Lcxy6pQSKFijMhwE8 If I do not remove query string, the above error will not appear: https://goo.gl/photos/dTLKcmMBbVxJkBgi9 This problem does not occur on previous versions. Do you understand? Thanks so much! The LiteSpeed Cache plugin does not apply any browser caching rules, so it might be an interference with another plugin. Could you go to your wp-admin, under LiteSpeed Cache -> Environment Report, could you copy and paste it here? Itll provide us with information that could prove useful to determining why there was a change. Thanks, Kevin Dear Kevin, Here is my report: Server Variables SERVER_SOFTWARE = LiteSpeed DOCUMENT_ROOT = /home/wpcanban/public_html X-LSCACHE = 1 LSCache Plugin Options version = 1.0.15 enabled = 1 radio_select = 1 purge_upgrade = 1 cache_commenters = cache_login = 1 cache_favicon = 1 cache_resources = 1 mobileview_enabled = mobileview_rules = login_cookie = tag_prefix = check_advancedcache = 1 debug = 0 admin_ips = 127.0.0.1 test_ips = public_ttl = 86400 front_page_ttl = 3600 feed_ttl = 0 404_ttl = 3600 purge_by_post = -.A.D.F.H.M.PGS.PGSRP.PT.T.Y excludes_uri = excludes_cat = excludes_tag = nocache_cookies = nocache_useragents = 403_ttl = 3600 500_ttl = 3600 Wordpress Specific Extras wordpress version = 4.7.4 locale = vi active theme = Paradise active plugins = Array ( [0] => vaultpress/vaultpress.php [1] => accelerated-mobile-pages/accelerated-moblie-pages.php [2] => advanced-database-cleaner/advanced-db-cleaner.php [3] => akismet/akismet.php [4] => allfacebook-instant-articles/afb_instant_articles.php [5] => amp/amp.php [6] => comment-approved/comment-approved.php [7] => easy-wp-smtp/easy-wp-smtp.php [8] => heartbeat-control/heartbeat-control.php [9] => jetpack/jetpack.php [10] => kk-star-ratings/index.php [11] => litespeed-cache/litespeed-cache.php [12] => nofollow-for-external-link/nofollow-external-link.php [13] => replyme/replyme.php [14] => shortpixel-image-optimiser/wp-shortpixel.php [15] => tablepress-responsive-tables/tablepress-responsive-tables.php [16] => tablepress/tablepress.php [17] => top-commentators-widget/top-commentators-widget.php [18] => wordpress-seo/wp-seo.php [19] => wp-memcached/wp-memcached.php ) /home/wpcanban/public_html/.htaccess contents: ###LSCACHE START PLUGIN - Do not edit the contents of this block!### RewriteEngine on CacheLookup Public on ###LSCACHE START RESOURCE### RewriteRule wp-content/. /[^/] (loader|fonts| .css| .js) .php - [E=cache-control:max-age=3600] ###LSCACHE END RESOURCE### ###LSCACHE START FAVICON### RewriteRule favicon .ico$ - [E=cache-control:max-age=86400] ###LSCACHE END FAVICON### ###LSCACHE END PLUGIN - Do not edit the contents of this block!### RewriteEngine On RewriteCond % HTTP_ACCEPT image/webp RewriteCond % DOCUMENT_ROOT /$1.webp -f RewriteRule ^(wp-content/uploads.+) .(jpe?g|png)$ $1.webp [T=image/webp,E=accept:1] Header append Vary Accept env=REDIRECT_accept RewriteEngine On RewriteCond % HTTPS !=on RewriteRule ^(. ) https://% SERVER_NAME /$1 [R,L] Header set Strict-Transport-Security max-age=31536000 env=HTTPS # BEGIN WordPress RewriteEngine On RewriteBase / RewriteRule ^index .php$ - [L] RewriteCond % REQUEST_FILENAME !-f RewriteCond % REQUEST_FILENAME !-d RewriteRule . /index.php [L] # END WordPress AddType application/x-font-woff2 woff2 AddType image/webp .webpExpand Thanks I dont see anything specifically that will set the browser cache. Could you DEACTIVATE LiteSpeed Cache and see if the browser cache works? If DEACTIVATING LiteSpeed Cache does not change anything, try adding the following rules to your .htaccess file: ExpiresByType text/css access plus 1 year ExpiresByType application/javascript access plus 1 year It does not work, even when I add the code below to the .htaccess file: ExpiresByType text/css access plus 1 year ExpiresByType application/javascript access plus 1 year What happens if you try to downgrade to 1.0.14.1? If it works, could you send an email to the email listed on the plugin description? Include a link to this thread so we have some context as to what the issue is. If it does not work, it is likely due to a change in another plugin, and we cannot assist with that. The issue is not resolved when I downgrade to version 1.0.14.1. It looks like the problem comes from another plugin. Thanks for your helping!
LiteCache Rush: Speed comes from using less, not from doing it faster
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