Title: Console Error Last modified: April 15, 2021 --- # Console Error * Resolved [eightwire](https://wordpress.org/support/users/eightwire/) * (@eightwire) * [5 years, 1 month ago](https://wordpress.org/support/topic/console-error-51/) * Uncaught ReferenceError: swcfpc_can_url_be_prefetched is not defined at (index): 396 at NodeList.forEach () at swcfpc_prefetch_urls ((index):390) at( index):419 Viewing 2 replies - 1 through 2 (of 2 total) * Thread Starter [eightwire](https://wordpress.org/support/users/eightwire/) * (@eightwire) * [5 years, 1 month ago](https://wordpress.org/support/topic/console-error-51/#post-14323134) * This console error appears to be related to the “Instant Page” functionality, but may just be a warning as it does not seems to cause any actual problems. * Plugin Contributor [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [5 years, 1 month ago](https://wordpress.org/support/topic/console-error-51/#post-14343329) * Hi, this seems very odd as `swcfpc_can_url_be_prefetched is not defined` means that the script is not part of the page. This is very odd as the script will get added if you enable the settings. Also I am unable to reproduce the issue across multiple websites. Viewing 2 replies - 1 through 2 (of 2 total) The topic ‘Console Error’ is closed to new replies. * ![](https://ps.w.org/wp-cloudflare-page-cache/assets/icon-256x256.gif?rev=3234997) * [Super Page Cache – Cloudflare Cache, Page Speed & Core Web Vitals](https://wordpress.org/plugins/wp-cloudflare-page-cache/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-cloudflare-page-cache/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-cloudflare-page-cache/) * [Active Topics](https://wordpress.org/support/plugin/wp-cloudflare-page-cache/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-cloudflare-page-cache/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-cloudflare-page-cache/reviews/) ## Tags * [javascript](https://wordpress.org/support/topic-tag/javascript/) * 2 replies * 2 participants * Last reply from: [iSaumya](https://wordpress.org/support/users/isaumya/) * Last activity: [5 years, 1 month ago](https://wordpress.org/support/topic/console-error-51/#post-14343329) * Status: resolved