Title: Defer Render-blocking JavaScript
Last modified: November 7, 2024

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# Defer Render-blocking JavaScript

 *  Resolved [scaffoldusa](https://wordpress.org/support/users/scaffoldusa/)
 * (@scaffoldusa)
 * [1 year, 7 months ago](https://wordpress.org/support/topic/defer-render-blocking-javascript/)
 * Enabling “Defer Render-blocking JavaScript” in Frontend caching creates a lot
   of “Uncaught reference Error: JQuery is not defined” errors in multiple script
   files:
 *     ```wp-block-code
       search.min.js:1 Uncaught ReferenceError: jQuery is not definedat search.min.js:1:159at search.min.js:1:167(anonymous) @ search.min.js:1(anonymous) @ search.min.js:1rbtools.min.js:1 Uncaught ReferenceError: jQuery is not definedat window.RS_MODULES (rbtools.min.js:1:937)at n (rbtools.min.js:1:110)at window.RS_MODULES (rbtools.min.js:12:9651)at n (rbtools.min.js:1:110)at window.RS_MODULES (rbtools.min.js:1:961)at n (rbtools.min.js:1:110)at rbtools.min.js:1:902at rbtools.min.js:1:911window.RS_MODULES @ rbtools.min.js:1n @ rbtools.min.js:1window.RS_MODULES @ rbtools.min.js:12n @ rbtools.min.js:1window.RS_MODULES @ rbtools.min.js:1n @ rbtools.min.js:1(anonymous) @ rbtools.min.js:1(anonymous) @ rbtools.min.js:1rs6.min.js:1 Uncaught ReferenceError: jQuery is not definedat rs6.min.js:1:129356(anonymous) @ rs6.min.js:1wp-util.min.js:2 Uncaught ReferenceError: jQuery is not definedat wp-util.min.js:2:1384(anonymous) @ wp-util.min.js:2frontend-modules.min.js:2 Uncaught ReferenceError: jQuery is not definedat Function.extend (frontend-modules.min.js:2:23749)at 2640 (frontend-modules.min.js:2:26316)at webpack_require (webpack.runtime.min.js:2:154)at 5955 (frontend-modules.min.js:2:26629)at webpack_require (webpack.runtime.min.js:2:154)at 6412 (frontend-modules.min.js:2:16167)at webpack_require (webpack.runtime.min.js:2:154)at frontend-modules.min.js:2:54772at webpackJsonpCallback (webpack.runtime.min.js:2:4905)at frontend-modules.min.js:2:61(anonymous) @ frontend-modules.min.js:22640 @ frontend-modules.min.js:2webpack_require @ webpack.runtime.min.js:25955 @ frontend-modules.min.js:2webpack_require @ webpack.runtime.min.js:26412 @ frontend-modules.min.js:2webpack_require @ webpack.runtime.min.js:2(anonymous) @ frontend-modules.min.js:2webpackJsonpCallback @ webpack.runtime.min.js:2(anonymous) @ frontend-modules.min.js:2core.min.js:5 Uncaught ReferenceError: jQuery is not definedat core.min.js:5:88at core.min.js:5:96(anonymous) @ core.min.js:5(anonymous) @ core.min.js:5(index):3854 Uncaught ReferenceError: jQuery is not definedat (index):3854:205 
       ```
   
 * Please advise.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fdefer-render-blocking-javascript%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Support [Preslav Kenanov](https://wordpress.org/support/users/preslavkenanov/)
 * (@preslavkenanov)
 * [1 year, 7 months ago](https://wordpress.org/support/topic/defer-render-blocking-javascript/#post-18122060)
 * Hello [@scaffoldusa](https://wordpress.org/support/users/scaffoldusa/),
 * The error messages you’re encountering indicate that the JavaScript library jQuery
   is not defined or loaded before other scripts that depend on it. You can try 
   and resolve that with the help of the exclude filters we have created for this
   purpose and you can find out more information about them [here](http://Defer Render-blocking).
   
   Based on the logs alone, we cannot say what exactly should be excluded. If you
   need help with that, be sure to [contact our Support Team](https://eu.siteground.com/tutorials/getting-started/getting-help-from-our-support-team/)
   via the appropriate channels if you are a SiteGround client.
 * Kind Regards,
 * Preslav Kenanov

Viewing 1 replies (of 1 total)

The topic ‘Defer Render-blocking JavaScript’ is closed to new replies.

 * ![](https://ps.w.org/sg-cachepress/assets/icon-256x256.gif?rev=2971889)
 * [Speed Optimizer - The All-In-One Performance-Boosting Plugin](https://wordpress.org/plugins/sg-cachepress/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Preslav Kenanov](https://wordpress.org/support/users/preslavkenanov/)
 * Last activity: [1 year, 7 months ago](https://wordpress.org/support/topic/defer-render-blocking-javascript/#post-18122060)
 * Status: resolved