Title: Uncaught ReferenceError: woof_ext_init_functions is not defined Last modified: December 25, 2019 --- # Uncaught ReferenceError: woof_ext_init_functions is not defined * Resolved [umeshwani](https://wordpress.org/support/users/umeshwani/) * (@umeshwani) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/) * Hello * I am facing the below issue Uncaught ReferenceError: woof_ext_init_functions is not defined * when using the autoptimize plugin [https://wordpress.org/plugins/autoptimize/](https://wordpress.org/plugins/autoptimize/) * I found similar topic as below and tried the changes but no result * [https://wordpress.org/support/topic/woof-product-filter-not-working-with-w3tc-autoptimize/](https://wordpress.org/support/topic/woof-product-filter-not-working-with-w3tc-autoptimize/) * Can you please help me to get this working. * Thanks * Umesh * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Funcaught-referenceerror-woof_ext_init_functions-is-not-defined%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 9 replies - 1 through 9 (of 9 total) * [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/) * (@optimizingmatters) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12268705) * Hi, I’m Autoptimize’s developer. Can you try adding `wp-content/plugins/woocommerce- products-filter/` to Autoptimize’s comma-separated JS optimization exclusion field? * hope this helps, frank * Thread Starter [umeshwani](https://wordpress.org/support/users/umeshwani/) * (@umeshwani) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12268835) * Hello frank, * Thanks for the quick response. I excluded the folder you mentioned. * [⌊2019-12-25_1341⌉⌊2019-12-25_1341⌉[ * but somehow its still not working, I am not sure but I think the function is not getting initialized. * Note: First time it will work correctly but later if we visit some other pages and comes back it will start giving the error again. * Thanks * Umesh * [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/) * (@optimizingmatters) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12268895) * I see a jQuery related error on the browser console, you’ll probably have to ( re-)add `js/jquery/jquery.js` to the JS optimization exclusion Umesh. * Thread Starter [umeshwani](https://wordpress.org/support/users/umeshwani/) * (@umeshwani) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12269263) * Hello Frank * by mistake it got removed. I added that back. But still no luck. * [@optimizingmatters](https://wordpress.org/support/users/optimizingmatters/) , Wishing you joy at Christmas and Prosperity in the coming year! * Thanks * Umesh * Plugin Support [mediawebster](https://wordpress.org/support/users/mediawebster/) * (@mediawebster) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12269347) * Hello [@optimizingmatters](https://wordpress.org/support/users/optimizingmatters/) * Thank you for cooperation! * Hello [@umeshwani](https://wordpress.org/support/users/umeshwani/) Try to activate this option – [https://c2n.me/45gW2vx.png](https://c2n.me/45gW2vx.png) - This reply was modified 6 years, 5 months ago by [mediawebster](https://wordpress.org/support/users/mediawebster/). * Thread Starter [umeshwani](https://wordpress.org/support/users/umeshwani/) * (@umeshwani) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12269519) * Hello [@mediawebster](https://wordpress.org/support/users/mediawebster/) , * I have enabled the option as you suggested, but still no luck. * [⌊2019-12-25_2220⌉⌊2019-12-25_2220⌉[ * Do you want to check other settings for both WOOF and Autoptimize * I can send the screenshots for the same. * Thanks * Umesh * Plugin Support [mediawebster](https://wordpress.org/support/users/mediawebster/) * (@mediawebster) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12273026) * Hello Umesh [@umeshwani](https://wordpress.org/support/users/umeshwani/) * Try to check this option – [https://c2n.me/45iMOa6.png](https://c2n.me/45iMOa6.png) * If no luck – Try this option – [https://c2n.me/45iMWTh.png](https://c2n.me/45iMWTh.png) - This reply was modified 6 years, 5 months ago by [mediawebster](https://wordpress.org/support/users/mediawebster/). * Thread Starter [umeshwani](https://wordpress.org/support/users/umeshwani/) * (@umeshwani) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12273283) * Hello [@mediawebster](https://wordpress.org/support/users/mediawebster/) * I tried both the settings but they are not working. * I am not sure but mostly it has something to do with Autoptimize settings. * I tried with WP Fastest Cache Plugin and it seems to be working good but I am not able to get the performance that I am getting with [@optimizingmatters](https://wordpress.org/support/users/optimizingmatters/) Autoptimize. * Thanks * Umesh * Plugin Support [mediawebster](https://wordpress.org/support/users/mediawebster/) * (@mediawebster) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12279102) * Hello Umesh [@umeshwani](https://wordpress.org/support/users/umeshwani/) * Unfortunately, I have no other ideas how to solve this. * Are you sure that after these settings changes you cleared the cache and recreated the JS files? Viewing 9 replies - 1 through 9 (of 9 total) The topic ‘Uncaught ReferenceError: woof_ext_init_functions is not defined’ is closed to new replies. * ![](https://ps.w.org/woocommerce-products-filter/assets/icon-256x256.png?rev= 2844301) * [HUSKY - Products Filter Professional for WooCommerce](https://wordpress.org/plugins/woocommerce-products-filter/) * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce-products-filter/#faq) * [Support Threads](https://wordpress.org/support/plugin/woocommerce-products-filter/) * [Active Topics](https://wordpress.org/support/plugin/woocommerce-products-filter/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-products-filter/unresolved/) * [Reviews](https://wordpress.org/support/plugin/woocommerce-products-filter/reviews/) * 9 replies * 3 participants * Last reply from: [mediawebster](https://wordpress.org/support/users/mediawebster/) * Last activity: [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-referenceerror-woof_ext_init_functions-is-not-defined/#post-12279102) * Status: resolved