Title: jQuery error bug? Last modified: November 20, 2019 --- # jQuery error bug? * [Rookie](https://wordpress.org/support/users/alriksson/) * (@alriksson) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/) * jQuery error: [https://pastebin.com/YHGew8Mc](https://pastebin.com/YHGew8Mc) Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/jquery-error-bug/page/2/?output_format=md) [→](https://wordpress.org/support/topic/jquery-error-bug/page/2/?output_format=md) * Thread Starter [Rookie](https://wordpress.org/support/users/alriksson/) * (@alriksson) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12156923) * Seems to work once jQuery Migrate is checked. Is it on or off then? Not sure and might be confusing. On/Off should be On = not checked Off = Checked? if so it works once migrate is off. Also think Assets cleanup is disabling it might be a conflict there if both isn’t checked to unload. * [https://tppr.me/aIRbC](https://tppr.me/aIRbC) * But once checked I can see “JQMIGRATE: Migrate is installed, version 3.1.0” so that means it is not unloaded. * Plugin Author [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/) * (@remzicavdar) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12157403) * Hi [@alriksson](https://wordpress.org/support/users/alriksson/) * By default both are activated when you activate the plugin. And both the latest stable version. * Maybe you have an aggressive caching / minify plugin? * The way it should work is very simple, if it’s checked on then it’s activated. * Kind regards, Remzi * Thread Starter [Rookie](https://wordpress.org/support/users/alriksson/) * (@alriksson) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12158018) * Using WP Rocket at the moment and I seem to be forced to load migrate otherwise I face this console error. I do not want to load the Migrate since it is not needed. * Plugin Author [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/) * (@remzicavdar) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12158353) * [@alriksson](https://wordpress.org/support/users/alriksson/) * Could you exclude this plugin? (usually it’s an loading order issue) I think you have priority support, I would recommend to open a ticket at WP Rocket. * Thread Starter [Rookie](https://wordpress.org/support/users/alriksson/) * (@alriksson) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12158376) * [@remzicavdar](https://wordpress.org/support/users/remzicavdar/) I do and they recommended me to contact the developer of the plugin which is you. If I disable the output of jQuery Migrate it shouldn’t matter but it does, unfortuently. * Plugin Author [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/) * (@remzicavdar) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12169105) * Hi [@alriksson](https://wordpress.org/support/users/alriksson/) * I know what the problem is jQuery itself is being deferred, not all plugins and/ or themes support this. Also after turning off jQuery MIgrate, try to clean/destroy your cache and everything from WP Rocket. * WP Rocket does aggressive caching (which is good), preloading, Defer JS Loading and other good things. You will need to Clear WP Rocket Cache after changing settings in jQuery manager, see: [https://docs.wp-rocket.me/article/53-clear-wp-rocket-cache](https://docs.wp-rocket.me/article/53-clear-wp-rocket-cache) * Also my apologies for my late reaction this happened due to working constraints and different time zones. I always try to answer within 48 hours. * Let me know when you have solved your issue. * Kind regards, Remzi * Thread Starter [Rookie](https://wordpress.org/support/users/alriksson/) * (@alriksson) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12169129) * Have tried this even disabled defer js in wp rocket. Without success so still stuck with loading the migrate to not face any console errors. * No worry 🙂 * Plugin Author [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/) * (@remzicavdar) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12169306) * Hi [@alriksson](https://wordpress.org/support/users/alriksson/) * Could you disabled the plug-in and check if everything works? I would like to exclude the possibility that it’s WP Rocket. * Regards, Remzi * Plugin Author [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/) * (@remzicavdar) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12173014) * PS: By disabling, I mean disable the jQuery Manager for WordPress plugin and check if everything works again. * I think the order of minifying and bundling is going wrong, jQuery.Deferred exception usually happens the order of your script is not right. * This can happen if WP Rocket minifies, bundles and makes one script from all of them. Try to adjust the order, or exclude jQuery and/or some other settings from WP Rocket. See similar issue [https://stackoverflow.com/questions/41951517/jquery-deferred-exception-datepicker-is-not-a-function/52058912](https://stackoverflow.com/questions/41951517/jquery-deferred-exception-datepicker-is-not-a-function/52058912) * I hope you’re able to solve this issue, otherwise I’m willing to talk directly with WP Rocket on your behalf. * Regards, Remzi * Thread Starter [Rookie](https://wordpress.org/support/users/alriksson/) * (@alriksson) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12173504) * Might be a conflict with the main jQuery as well. Since in your plugin it is set to default and wp rocket defer it. Could it be a conflict here as well since I experience some jquery issue when defer in wp rocket. * Above seems to various of jquery even inline. Think this is more on wp rockets side though. * Added a new support request for wp rocket to check as well. * I can put all 3 parties in a email chain which might make it easier for everyone. Even share staging environment which I wont do over the public wp support thread. * Also found out that the migrate seems to work to disable on apache or apache nginx reverse but not on nginx alone. * Plugin Author [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/) * (@remzicavdar) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12174235) * [@alriksson](https://wordpress.org/support/users/alriksson/) I definitely think it’s about the script order. jQuery needs to be loaded first or before the script which uses jQuery. * I think you should tell WP Rocket and ask how to change the script order or how to load something first. * Plugin Author [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/) * (@remzicavdar) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12181093) * Hi [@alriksson](https://wordpress.org/support/users/alriksson/) * Did you talked/mailed with WP Rocket? I could contact them directly if prefer that, because I understand what the problem is, it’s more like a configuration issue on your end, but it’s still annoying that this occurs. * Maybe I can work something out with WP Rocket, so that other users will have better support and/or that the plugin automatically configures or use pre-applied settings. * Kind regards, Remzi * PS: If you’re not sure about something , you could also enable debugging settings. Then you will get a detailed view about what’s happening in the background. - This reply was modified 6 years, 5 months ago by [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/). * Thread Starter [Rookie](https://wordpress.org/support/users/alriksson/) * (@alriksson) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12203226) * [@remzicavdar](https://wordpress.org/support/users/remzicavdar/) Sorry for late reply! * Please do, there is not too much of configurations when it comes to defer in WP Rocket. Safe mode or nto safe mode which is excluding or including jQuery. * Sounds great Remzi! * Plugin Author [Remzi Cavdar](https://wordpress.org/support/users/remzicavdar/) * (@remzicavdar) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12203930) * Hi [@alriksson](https://wordpress.org/support/users/alriksson/) * I have sent them a message. Could you also try these things: – [https://docs.wp-rocket.me/article/19-resolving-issues-with-file-optimization](https://docs.wp-rocket.me/article/19-resolving-issues-with-file-optimization)– [https://docs.wp-rocket.me/article/19-resolving-issues-with-file-optimization#combine-css-js](https://docs.wp-rocket.me/article/19-resolving-issues-with-file-optimization#combine-css-js) * In the meantime this is all I can do for you. I will get back to you asap when I get an reply from WP Rocket. * Regards, Remzi * Thread Starter [Rookie](https://wordpress.org/support/users/alriksson/) * (@alriksson) * [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/#post-12204122) * [@remzicavdar](https://wordpress.org/support/users/remzicavdar/) Thanks, tried excluding files I think could cause it. But preferably should work but as you say it may be the wrong ordering of the scripts. Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/jquery-error-bug/page/2/?output_format=md) [→](https://wordpress.org/support/topic/jquery-error-bug/page/2/?output_format=md) The topic ‘jQuery error bug?’ is closed to new replies. * ![](https://ps.w.org/jquery-manager/assets/icon-256x256.png?rev=2100009) * [jQuery Manager for WordPress](https://wordpress.org/plugins/jquery-manager/) * [Frequently Asked Questions](https://wordpress.org/plugins/jquery-manager/#faq) * [Support Threads](https://wordpress.org/support/plugin/jquery-manager/) * [Active Topics](https://wordpress.org/support/plugin/jquery-manager/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/jquery-manager/unresolved/) * [Reviews](https://wordpress.org/support/plugin/jquery-manager/reviews/) * 18 replies * 2 participants * Last reply from: [Rookie](https://wordpress.org/support/users/alriksson/) * Last activity: [6 years, 5 months ago](https://wordpress.org/support/topic/jquery-error-bug/page/2/#post-12220868) * Status: not resolved