Title: js problem
Last modified: June 25, 2018

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# js problem

 *  [prokops](https://wordpress.org/support/users/prokops/)
 * (@prokops)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/js-problem-4/)
 * Your Woocommerce Custom Fields For Variation Pro plugin gives me: ReferenceError:
   woocommerce_custom_options_params is not defined
    /wp-content/plugins/woocommerce-
   variation-options-pro//assets/js/options.js?ver=4.9.6:27
 * what to do? No fields are displayed

The topic ‘js problem’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/woo-custom-fields-for-variation.svg)
 * [Woocommerce Custom Fields For Variation](https://wordpress.org/plugins/woo-custom-fields-for-variation/)
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 * 0 replies
 * 1 participant
 * Last reply from: [prokops](https://wordpress.org/support/users/prokops/)
 * Last activity: [7 years, 11 months ago](https://wordpress.org/support/topic/js-problem-4/)
 * Status: not resolved