Title: 866 issues with uncached JavaScript and CSS files Last modified: November 2, 2021 --- # 866 issues with uncached JavaScript and CSS files * Resolved [shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) * (@shelbymaguire) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/) * I have WP-Optimize and Jetpack Boost and I am still getting 866 issues with uncached JavaScript and CSS files on my SEMrush audit. * Here are some examples of resources links: [https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-header-a29b17cd.min.css](https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-header-a29b17cd.min.css) * [https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-header-monsterinsights-frontend-script.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-header-monsterinsights-frontend-script.min.js) * [https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-footer-sv-wc-payment-gateway-payment-form-v5_10_8.min.j](https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-footer-sv-wc-payment-gateway-payment-form-v5_10_8.min.j) * [https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-footer-es6-promise.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-footer-es6-promise.min.js) * [https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-footer-wc-authorize-net-cim.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1635542696/assets/wpo-minify-footer-wc-authorize-net-cim.min.js) * I am also getting this recommendation: Serve static assets with an efficient cache policy * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2F866-issues-with-uncached-javascript-and-css-files%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 11 replies - 1 through 11 (of 11 total) * [Harshad](https://wordpress.org/support/users/bornforphp/) * (@bornforphp) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15031998) * [@shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) Could you please try to turn off minify option and check if you still get the error? * Thread Starter [shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) * (@shelbymaguire) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15033418) * I turned off the minify option. Here are the results: On GTMetrix: The performance went from 86% -> 84%, Structure went from 90% -> 89%, Largest Content paint went from 2.4s -> 2.6s, Total blocking time went from 35ms -> 99ms, Cumulative layout shift went from 0.01 -> 0.02. * On Google PageSpeed: Went from a score of 32 -> 26 * Both total blocking time and time to interact say the way to “solve the problem” is with a caching plugin. But obviously, I am still having issues. * [Harshad](https://wordpress.org/support/users/bornforphp/) * (@bornforphp) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15038670) * [@shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) Could you please uncheck the option “Enable minification of JavaScript files” and “Enable merging of JavaScript files” form WP-Optimize > Minify > Javascript and click Save changes button and check if it helps to fix the issue? * Thread Starter [shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) * (@shelbymaguire) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15041272) * With “Enable Minification of JavaScript Files UNCHECKED and “Enable Merging of JavaScript files” CHECKED * GTMatrix Grade: B Performance Score: 81% Structure Score: 88% Largest Contentful Paint: 2.7s Total Blocking time: 91ms Cumulative Layout Shift: 0.02 * With “Enable Minification of JavaScript Files CHECKED and “Enable Merging of JavaScript files” CHECKED * GTMatrix Grade: B +3% Performance Score: 85% Structure Score: 89% Largest Contentful Paint: 2.5s Total Blocking time: 66ms Cumulative Layout Shift: 0.02 * With “Enable Minification of JavaScript Files CHECKED and “Enable Merging of JavaScript files” UNCHECKED * GTMatrix Grade: B +4% (from the configuration directly above) Performance Score: 86% Structure Score: 90% Largest Contentful Paint: 2.4s Total Blocking time: 55ms Cumulative Layout Shift: 0.02 * Does it seem the last configuration is the best? If I look at the Performance more in-depth between the last two configurations what is good in one, is down in the other. For example: With “Enable Minification of JavaScript Files CHECKED and “Enable Merging of JavaScript files” CHECKED: Redirect Duration is 540ms & Reduce unused JavaScript is 99 (good). With “Enable Minification of JavaScript Files CHECKED and “Enable Merging of JavaScript files” UNCHECKED: Redirect Duration is 569ms and Reduce unused JavaScript is 97 (bad). * Overall the third configuration is the best, but my Cumulative Layout Shift remains the same with all options. I am still getting this with the third option: * Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. * [https://www.gstatic.com/recaptcha/releases/kcXVPRWG7fMILHmzon0–fD3/recaptcha__en.js](https://www.gstatic.com/recaptcha/releases/kcXVPRWG7fMILHmzon0–fD3/recaptcha__en.js) TRANSFER SIZE: 135KB POTENTIAL SAVINGS: 65.2KB [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-divi-custom-script.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-divi-custom-script.min.js) TRANSFER SIZE: 64.7KB POTENTIAL SAVINGS: 39.2KB [https://www.googletagmanager.com/gtag/js?id=G-GNR7RTBYGT&l=dataLayer&cx=c](https://www.googletagmanager.com/gtag/js?id=G-GNR7RTBYGT&l=dataLayer&cx=c) TRANSFER SIZE:60.3KB POTENTIAL SAVINGS: 34.0KB * AND THIS: CDNs can give an equally fast web experience to your users across the globe. * URLS [https://aceewaste.com/wp-content/plugins/wc-builder-divi-premium/styles/style.min.css](https://aceewaste.com/wp-content/plugins/wc-builder-divi-premium/styles/style.min.css) [https://aceewaste.com/wp-content/et-cache/2030/et-core-unified-deferred-2030.min.css?ver=1636133976](https://aceewaste.com/wp-content/et-cache/2030/et-core-unified-deferred-2030.min.css?ver=1636133976) [https://aceewaste.com/wp-content/uploads/2021/11/Horizontal-ACE-Logo-100-x-30-px.png](https://aceewaste.com/wp-content/uploads/2021/11/Horizontal-ACE-Logo-100-x-30-px.png) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-header-monsterinsights-frontend-script.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-header-monsterinsights-frontend-script.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-divi-custom-script.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-divi-custom-script.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-es6-promise.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-es6-promise.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-et-core-api-spam-recaptcha.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-et-core-api-spam-recaptcha.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-fitvids.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-fitvids.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-jquery-mobile.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-jquery-mobile.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-wc-builder-divi-frontend-bundle.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-wc-builder-divi-frontend-bundle.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-sv-wc-payment-gateway-payment-form-v5_10_8.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-sv-wc-payment-gateway-payment-form-v5_10_8.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-wc-authorize-net-cim.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-wc-authorize-net-cim.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-et-core-common.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-et-core-common.min.js) [https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-wcbd-js.min.js](https://aceewaste.com/wp-content/cache/wpo-minify/1636134955/assets/wpo-minify-footer-wcbd-js.min.js) [https://aceewaste.com/wp-content/uploads/2021/10/Adelante.webp](https://aceewaste.com/wp-content/uploads/2021/10/Adelante.webp) [https://aceewaste.com/wp-content/uploads/2021/10/cartwright-elementary-school-district-squarelogo-1426229638959.webp](https://aceewaste.com/wp-content/uploads/2021/10/cartwright-elementary-school-district-squarelogo-1426229638959.webp) [https://aceewaste.com/wp-content/uploads/2021/10/Avondale.webp](https://aceewaste.com/wp-content/uploads/2021/10/Avondale.webp) [https://aceewaste.com/wp-content/uploads/2021/10/Lanstar.webp](https://aceewaste.com/wp-content/uploads/2021/10/Lanstar.webp) [https://analytics.sitewit.com/v3/151583659/sw.js](https://analytics.sitewit.com/v3/151583659/sw.js) [https://aceewaste.com/wp-content/et-cache/2030/et-divi-dynamic-2030-late.css](https://aceewaste.com/wp-content/et-cache/2030/et-divi-dynamic-2030-late.css) [https://connect.sitewit.com/js/151583659/sw_connect.js?&ns=sw](https://connect.sitewit.com/js/151583659/sw_connect.js?&ns=sw) [https://analytics.sitewit.com/images/cq_blank.gif?_sw_id=151583659&_sw_uid=3d3b3c62-2225-4755-ab2b-d5e1e86972b6&_sw_fp=e2aa339425ddbe10fdf6566c379c42b7356db9e5&_sw_pl=127&_sw_pc=1&_sw_dat=MXxhY2Vld2FzdGUuY29tfGh0dHBzOi8vYWNlZXdhc3RlLmNvbS98ZW4tVVN8MTM2N3w4NjN8MjR8Q2hyb21lLzkwLjAuNDQzMC4yMTJ8LXwxfDB8MXwwfC18fC18LXwtfDE3Mi4yNTUuNDguMTQ1fDA=&to=102](https://analytics.sitewit.com/images/cq_blank.gif?_sw_id=151583659&_sw_uid=3d3b3c62-2225-4755-ab2b-d5e1e86972b6&_sw_fp=e2aa339425ddbe10fdf6566c379c42b7356db9e5&_sw_pl=127&_sw_pc=1&_sw_dat=MXxhY2Vld2FzdGUuY29tfGh0dHBzOi8vYWNlZXdhc3RlLmNvbS98ZW4tVVN8MTM2N3w4NjN8MjR8Q2hyb21lLzkwLjAuNDQzMC4yMTJ8LXwxfDB8MXwwfC18fC18LXwtfDE3Mi4yNTUuNDguMTQ1fDA=&to=102)` * BTW – THANK YOU!! I really appreciate your help. I am going to leave it on the third configuration for now. Please advise. * [Harshad](https://wordpress.org/support/users/bornforphp/) * (@bornforphp) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15044165) * [@shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) Please “ uncheck” those options “Enable minification of JavaScript files” and “Enable merging of JavaScript files” form WP-Optimize > Minify > Javascript and click Save changes button and check if it helps to fix the issue? * Thread Starter [shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) * (@shelbymaguire) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15051936) * With both unchecked, per your message above: * GTMatrix Grade: B Performance Score: 84% Structure Score: 89% Largest Contentful Paint: 2.6s Total Blocking time: 60ms Cumulative Layout Shift: 0.01 * Getting a new error with this configuration: “Use HTTP/2 for all resources” * [Harshad](https://wordpress.org/support/users/bornforphp/) * (@bornforphp) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15056682) * [@shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) This article can be helpful: [https://gtmetrix.com/use-http2-for-all-resources.html](https://gtmetrix.com/use-http2-for-all-resources.html) * Thread Starter [shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) * (@shelbymaguire) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15057004) * Thanks! I have that. So after making the last change, my desktop score has improved a lot. * My mobile score is terrible. Total Blocking Time is 1.21s, Time to Interactive is 12.82s and First Contentful Paint is 3.21s. The advice is to get a caching plugin. Help! Should I try another plugin, as this one doesn’t seem to be working… * [Harshad](https://wordpress.org/support/users/bornforphp/) * (@bornforphp) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15060574) * [@shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) Could you please try to purge the cache and then try to Preload the urls wait for some time and then try to check the mobile score on Google Page speed insights? * Thread Starter [shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) * (@shelbymaguire) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15062892) * Currently preloading urls – will get back to you on that. * In the meantime: * I have a question – On the “Page Cache” Tab, under “cache settings” I have Generate Separate Files For Mobile Divices” checked, with a cache lifespan of 24 hours. Is that configured correctly? Should I have “Activate Scheduled Cache Preloading” checked? If so, what should by schedule type be set to? * [Harshad](https://wordpress.org/support/users/bornforphp/) * (@bornforphp) * [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15063981) * [@shelbymaguire](https://wordpress.org/support/users/shelbymaguire/) You can select “Same as cache lifespan”, if you have cache lifespan checked. Viewing 11 replies - 1 through 11 (of 11 total) The topic ‘866 issues with uncached JavaScript and CSS files’ is closed to new replies. * ![](https://ps.w.org/wp-optimize/assets/icon-256x256.png?rev=1552899) * [WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance](https://wordpress.org/plugins/wp-optimize/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-optimize/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-optimize/) * [Active Topics](https://wordpress.org/support/plugin/wp-optimize/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-optimize/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-optimize/reviews/) * 11 replies * 2 participants * Last reply from: [Harshad](https://wordpress.org/support/users/bornforphp/) * Last activity: [4 years, 9 months ago](https://wordpress.org/support/topic/866-issues-with-uncached-javascript-and-css-files/#post-15063981) * Status: resolved